Specifications fashionable and simple design foldable design,easy to take away. Bluetooth Chip: CSR 2.1Bluetooth Profile: A2DP,AVRCPOperation Distance: up to 10 MRechargeable lithium ion battery: 3.7V 180mAhPlayback time: 7-8 HoursCharging time: 2-3 HoursFrequency Response: 50HZ-20KHZS/N Ratio: >=95dBInput Sensitivity: 600mv RMSDistortion: <=1.0% Battery Capacity 180mAhBattery Voltage 3.7VUSB input Voltage 5VPlayback time 8 hours Compatibility Including: -Apple IOS 4.0 version above(iPhone 5 & 4S & 4 & 3GS)(New iPad & iPad2 &iPad)(iPod Touch 4 ) -Nokia Symbian S60 (V3.0, 3.1 or 3.2) OS -Windows Mobile (6.0 and later) OS Current we use Gift color box. Pls email us for details and packing liOrder Qty over 3,000 pcs. We can customize your packaging.Pls contact us to set the details Our R&D team can meet your specific function requests of the products. So pls let us know your ideasWe also like to introduce our ne
Specifications Bluetooth headset,bluetooth headphone 1. Bluetooth headphone 2. Support TF card 3. sport bluetooth headphone Bluetooth headset/bluetooth headphone Parameter and specification Bluetooth Version: V2.1+EDR Class IIFrequency: 2.4GHz-2.48GHzProfile supported: Headset and Handsfree ,A2DP and AVRCPChipset: CSROperation range: >10mTalking time: >10hoursMusic playing time: 8 hoursStand-by time: >300hoursWeight: 104g Bluetooth headphone for mobile,IPAD,IPHONE,MP3,MP4,IPOD \ Listen to music when taking sport
Specifications 1. wireless bluetooth headsets bh503 for mobile phones 2. high quality and best prices 3. one year warranty Stereo NK bh503 bluetooth headset Description:wireless bluetooth headsets bh503 for mobile phones - for excellent audio quality, great wearability and laid-back design, lets you lose yourself in the music knowing you won't miss a call.With a Bluetooth Stereo Headset BH-503 you can:Enjoy high-quality stereo sound streamed from your compatible phoneStay comfortably in style with over the ear design and an easygoing neckbandControl the music player and manage your calls with the media keysSave time with fast charging Features:Weight: 70gDimensions: 150x75x155mmTalk Time: up to 11hMusic Time: up to 11hStandby Time: up to 210hInterfaces: Bluetooth 2.0 with EDRAdvanced Audio Distribution ProfileAudio Video Remote Control ProfileOperating Range: up to 10m
Brand Name: OEM&GO-ON Model Number: GB-100 Style: Headband Communication: Wireless Connectors: 3.5mm Use: mobile,tablets, Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) Technology: Bluetooth V2.1+EDR Color: Black Effective range: Up to 15 meters(360°) Signal-to-noise ratio: 90dBr@1KHz Mode: Stereo Frequency response: 20Hz~20KHz Charging time: 2 hours Charge Voltage: 5V Operating time: More than 15 hours Power supply: Rechargeable Lithium-Polymer battery(500mAh) Packaging & Delivery Packaging Detail: Blacking carrying case + color box 1pc per color box,20pcs per carton box Delivery Detail: 30 days after order comfirmed Specifications Crystal sound bluetooth headset 1,Foldable design 2,Lithium-polymer battery 3,Built-in buttons 4,CE FCC RoHs certificate Crystal sound stereo wireless Bluetooth headphone with big earcup design The GB-100 is Bluetooth stereo headsets with rechargeable lithium-polymer battery. Built-in
Specifications wireless bluetooth headphones for laptop 1. Cool design bass headphone 2. Enriched sound 3.low price abd best quality 2013 Fashionable Wireless Bluetooth Headphone Details Bluetooth version: Bluetooth V3.0+EDR Supports: HSP, HFP, A2DP and AVRCP Key: Volume up/down, Song last/next, MFB pair/pick/hang/recall Effective range: 10 meters Working time: Music: Up to 10 hours Talk: Up to 11hours Standby time: up to 250 hours Input: DC: 5V/130mA Charging time: about 3 hours Microphone: build-in Rechargable: USB mini 5 pin cable Bluetooth versionBluetooth V3.0+EDRSupportsHSP, HFP, A2DP and AVRCPKeyVolume
Specifications Bluetooth Bracelet Show caller ID on LED screen /Vibrate when call come /Prevent mobile lose /Apply to all bluetooth mobile. hot selling fashionable Bluetooth vibrating braceletBluetooth Bracelet Show caller ID on LED screen /Vibrate when call come /Prevent mobile lose /Apply to all bluetooth mobile Specifications:* Color: Black and White* Connectors/Ports: Charging port* Buttons/switches: A, B* Bluetooth Version: V2.1* Voltage: 3.6V-4.2V* Current: 130mA* Frequency: 2.4GHz* Input Voltage: 110~240V* Frequency: 50Hz* Input current: 0.15A* Output Voltage: 5.7V* Output current: 600mA* Charge time: 2 hours* Standby time: up to 72 hours* Battery: Lithium Polymer Product Notes:* The Bracelet has a 16cm internal circumference and the plastic is quite rigid.* You have to slide the bracelet down your hand so it’s mainly designed for petite ladies or adolescents.* Hold the B button to turn the device on and off.* Hold the B Button even longer to pair the device for
Brand Name: ATI / OEM / ODM Model Number: SH36 Style: In-Ear Communication: Wireless Connectors: 2.5mm Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling,Bluetoth Headset Place of Origin: Guangdong China (Mainland) Operation range:: Up to 10 meters Bluetooth version:: V2.1+EDR Talk time:: Up to 3.5 hours Packaging & Delivery Packaging Detail: white box Delivery Detail: 10 - 20days Specifications waterproof bluetooth headphones range: Up to 10 meters Bluetooth version: V2.1+EDR Headset and Hands-free , A2DP, AVRCP waterproof bluetooth headphonesOperation range: Up to 10 metersBluetooth version: V2.1+EDRHeadset and Hands-free , A2DP, AVRCP. 1Operation range: Up to 10 meters Bluetooth version: V2.0 Talk time: Up to 3 hours Standby time: Up to 100 hours Charging time: 1-2 hours Battery type: Rechargeable Poly- Li battery size:36.5mm*16mm*9.6mm, weight:6.6g &nb
Specifications Specifications 1. High-grade headphone with great timbre and quality 2. High-class and fashionable design 3. Graceful timbr Specifications1. High-grade headphone with great timbre and quality 2. High-class and fashionable design 3. Graceful timbre, enjoying musicHigh-grade headphone with great timbre and quality Feature: New designFoldaway headphone could be convenient to your take in any place.Stylish design and good quality Specification: Drive Unit: 40mmFrequency range: 20-20KHzImpedance: 16ΩSensitivity: 108±3dBRated Power: 10mWMaximum power: 30mWLink line:
Brand Name: super mini bluetooth headset Model Number: F36 Style: Ear Hook,super mini bluetooth headset Communication: Wireless Connectors: USB Use: super mini bluetooth headset Function: Bluetooth,Noise Cancelling Place of Origin: China (Mainland) talking time: 8 h standby time: 200 h color choice: black white red blue chip: issc music playing: support transmitting distance: 10m use range: portable device with blutooth function one connect two design: can connect two portable device voice broadcasting fuction: support Packaging & Delivery Packaging Detail: super mini bluetooth headset gift box ,we also accept OEM packing Delivery Detail: 2 weeks after order confirmation Specifications super mini bluetooth headset 1.talking time :8 h 2.standby time :200 h 3.transmitting distance :10m 4.style :ear hook F36 super mini bluetooth headset feature :1.fashionable looking is well received by customers2.small size and light weight make you
Specifications Bluetooth headset with LCD and new design bluetooth hands free 600 contacts stored, re-dial and voice dialing supported Bluetooth Handsfree Car kit with LCDAddwords: bluetooth earphone, bluetooth headset New design with LCD make it different and special to give different experience. Function and features:1. DSP full processing, no noise and aftersound2. Incoming call display: LCD screen can display callers Name and phone numbers directly and can save 600 groups of contacts3. Voice-dialing function supported: Cell phone supplied4. Re-dialing of last calling number.5. Audio volume adjustable.6. Energy-saving: Auto power off when disconnected 5 minutes and powered on again when connected.7.
Specifications 1. Universal Bluetooth Headset 2. Best seller 3. Fit all phones 4. Built-in noise reduction 5. Wireless headset Features:BEST SELLER Universal Bluetooth Headset.Compatible with Bluetooth enabled devices including cell phones and PDAs made by different manufacturers.EasyPair technology simplifies and facilitates connection with your Bluetooth enabled phones.Built-in noise reduction and echo cancellation technology ensures clear conversations for both ends.Automatically raises or lowers headset volume depending on the environments – volume goes up when it is noisy; volume goes down when it becomes quiet.Fits either your left or right ear.TrueComfort design helps ensure a snug and secure fit.High capacity Li-poly battery, extra longer talk time than normal Bluetooth headsetsBluetooth V2.0/V2.1 + EDR compatible with any Bluebooth enabled mobile phonesPictures for reference:
Brand Name: MINDSONIC Model Number: BTSHS-203 Style: Headband Communication: Wireless Connectors: USB & 3.5mm Use: Mobile Phone Function: Bluetooth Place of Origin: Zhejiang China (Mainland) color: black & white certificate: CE,ROHS Packaging & Delivery Packaging Detail: color box Delivery Detail: 30days Specifications Bluetooth Headphone Bluetooth 2.1+ EDR With built-in microphone Rechargeable lithium battery Neckband design Bluetooth Headphone Specifications:Working Frequency: 2.4GHzReceiving range: 10m, class 2Modulation: GFSKTransmitter power: 4dbmHeadphone-Frequency Response: 20~20K Hz-S/N ratio: >78dB-Distortion: <0.1%-Working voltage: 3.3~4.2V-Speaker size: 30mm-Speaker impedance: 32 OhmsMicrophone:-Size: 6mmx1.8mm-Impedance: 2.2K Ohms Features:Bluetooth 2.1+ EDRWith built-in microphoneUsing lithium battery, playing time up to 8 hours, standby time around 100 hoursFoldable design for easy carrying.Compatible with all Bluetooth enabled devices such a
Brand Name: LD Model Number: S69-0301 Style: Headband Communication: Wireless Connectors: USB Use: laptop,PC,Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Bluetooth Version: V2.0+EDR Class II Operating Distance: 10metres(390"inches) Supported Profiles: Headset, Handsfree, A2DP and AVRCP Profiles Frequency: 2.402-2.480GHZ GFSK light weight: 126*70*40mm,42g Packaging & Delivery Packaging Detail: standard export package Delivery Detail: prompt shipment for trial order Specifications 1.original Factory Price. 2.your music everywhere. 3.Simple design. 4.Bluetooth headphone with smart sound mini foldable Bluedi brand Wifi bluetooth headphone stereo headphone with A/C charger and USB Just for your stylish package
Specifications 1. Bluetooth Headsets Earphones Convenient For Sports 2. Built in Microphone 3. Stereo 4.Color: Black,red,blue,green Bluetooth Headsets Earphones Convenient For Sports Features:1. Wireless appreciation in the mobile phone play the stereo music.2. listen to the radio broadcast computer stereo music.3. Use the network to realize the remote wireless two-way conversation.4. Radio listening to the stereo music, dial out, answer the call to be automatic conversion.5. Portable back-hang design, convenient for sports.6. Allow you answer the phone anytime and anywhere.7. Built in Microphone for Handsfree Cell Phone use.8. Can answer calls from any phone. Specifications: ColorBlack/Red/Blue/GreenWeight75gButtonsPlay/ Pause, VOL +, VO -, Call/ ReceiveCharging time1-2 hoursPlay time4 hoursStandby time250 hoursUSB Cable LengthAbout 62 cm/ 24.8''Bluetooth versionV2.1+EDAudio range2.402GHZ~2.480GHZ ISM BandBatteryBuilt-in lithium battery (charged via 2.0 USB)Channel79cha
Model Number: BH3034 Style: Headband Communication: Wireless Connectors: Wireless Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: China (Mainland) Color: Black,Red, White Transmission Distance: 10M Standby time: 325 H Talking time: 35 H Charging time (maximum):: 1-2 H Bluetooth Version: 3.0+EDR Use for: Mobile Phone, PC bluetooth device Packaging & Delivery Packaging Detail: Blister / Retail box. Delivery Detail: 3-15days after deposit Specifications 1.With HI-FI speakers, super bass. 2.with SD card slot. 3.Bluetooth Version3.0 Features: With a 8 t Bluetooth Stereo Headset you can: 1) Built-in two Bass speakers, 3D speaker combination, 2 Subwoofer speakers , enjoy your HI-FI music. 2) With Micro SD slot , enjoy music everywhere.3) Control the music player and manage your calls with the media keys 4) Save time with fast charging 5) with 3.5mm audio cable, to connect this bluetoot
Specifications Headset with MIC. Designed for left or right ear use with 360 degree rotating. Adjustable headband to fit most head size. 1,Type:Computer Bluetooth Headphone With Microphone 2,Frequency Table:2.4026GHz-2.480GHz3,Calling Time:8hrs4,Standby Time:160hrs5,Battery:180mAh6,Distance:within 10m7,Speaker Diameter:30mm8,Microphone:6*5mm-42*B+3dB9,You can use it to enjoy music from the computer,the sound quality is so great10,The human design makes you feel so comfortable even wearing it for such long time11,Its our patent deaign,so special for the market Sample ordering it is available now.
Brand Name: ESORUN Model Number: OA04 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Ver.: Bluetooth V3.0+EDR Bluetooth Profiles: HSP,HFP,A2DPK,AVRCP Effective Range: 10Meters Music Time: 10Hours Talk Time: 11Hours Standby Time: Up to 250Hours Input: DC:5V/180mAh Charge Time: 3Hour Dimensions: 14.5*10*6cm Packaging & Delivery Packaging Detail: GIFT BOX Delivery Detail: 7-15DAYS Specifications Stereo bluetooth headset 1.Frequency:2.4GHz ISM band 2.Built-in 360 degree Omni direction microphone 3.OEM & ODM High quality Bluetooth 2ch Stereo Audio Headset stereo bluetooth headset SpecificationsBluetooth versionVER3.0+EDRBluetooth transmission distance33 FT/10M metersSupport ProfileHSP,HFP,A2DPK,AVRCPFrequency Response20 to 20kHzSignal noise ratio≥85d BSpeaker impedance4 ΩRechargeable battery5V/180mAhChargeUSB portCharging time /Playing timeabout 2 hours
Brand Name: lg Model Number: hbs 730 Style: Ear Hook Communication: Wireless Connectors: Other Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: 25.6 x 17.6 x 4.8 cm Delivery Detail: 3-7days Specifications Enhanced Audio and Bass Response Noise Reduction/Echo Cancellation Advanced Multipoint Text to Speech LG Tone+ FeaturesTalk/Music Time: Up to 15/10 hoursBluetooth Version: 3.0Long Battery LifeMicrophone MuteaptX CompatibleAudible Battery Status AlertVibrating Call AlertText to SpeechAll Day Comfort Witness the enhanced audio and bass response of the next evolutionary step in the LG TONE family. Tone+ Wireless Stereo Headset delivers a high quality audio experience in stereo sound with the convenience of Bluetooth technology. Music and phone conversations sound better with enhanced audio and bass response that compliments a wide range of music genres. Built in apt-X technology reproduces CD quality sound over
Specifications Newest Design Wireless Bluetooth Headphone 1.Earphone for mobile phone. 2.Reduce radiation. 3.Senior Quality. 4.Small MOQ. Newest Design Wireless Bluetooth Headphone •Feature 1.Powerful compatibility, Suitable for different brands of mobile phone.2.The Retro Handset combines classic style with a contemporary edge and is finished with a luxurious soft-touch texture with multifunction.3. Noise reduction system, this handset offers excellent sound quality and eliminates up to 99% of electro magnetic interference.4. Can be used for flat panel comp
Brand Name: Tonsion Model Number: BT30-C Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth,Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Type: Bluetooth For use: Mobile notebook ipad Color: black/white Connector: Bluetooth Compatibility: Mobile Phone, PC, MP3 player, etc. Packaging & Delivery Packaging Detail: blister package or color box Delivery Detail: delivery in 30 to 35 days around after got the deposit in advanc Specifications Bluetooth Headphone With TF Slot 1.new model 2.turnable 180 degree cover 3.stereo headset 4.welcome OEM brand Bluetooth headphone With TF Slot For Notebook Mobile Product Specifications: Wireless frequency:2.404-2.479GHz, ISM BAND Operating Voltage and current:30mA 3.7V.( 3.7v 500mA lithium ion battery) Speaker Frequency Response:20Hz-20KHzMicrophone Frequency Response:100Hz-8KHz SNR of speaker:>70dBSNR of microphone:>=55dBD
Specifications headset can play out clear, detailed but powerful voice. For Asian fans to provide the highest quality hearing enjoyment Soul by Ludacris is composed of the United States of America glamor award winning singerLudacris founded the professional brand headphones, from development to production. Ludacris spent a total of 3years to completion.The purpose is to the headset can play out clear, detailed but powerful voice. For Asian fans to provide the highest quality hearing enjoyment. Accessories:SOUL universal no microphone headset line 1,SOUL Apple dedicated controlData line 1Earphone portable bag1Wipe clean cloth 13.5mm / 6.35mm adapter1SOUL English manual 1edition
Brand Name: Yeefaa Model Number: BTH002 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packing:: color box Usage:: Mobile Phone Unit Price/Payment:: FOB Shenzhen. T/T Origin:: Shenzhen,China Transportation:: by sea/air/express Packaging & Delivery Packaging Detail: Color box Delivery Detail: 5-7days Specifications Stereo Bluetooth Headset BTH002 Embedded mic for hands-free conversation from Bluetooth-enabled mobile phones stereo music Stereo Bluetooth Headset BTH002FeatureExtreme comfort from adjustable head hand and earplug.Embedded microphone for hands-free conversation from Bluetooth-enabled mobile phonesEnjoy stereo music wirelessly from Bluetooth A2DP devices.Pause the music & Play back automatically when receives an incoming callSupport remote control of play/pause, previous/next track, volume up and volume downCall transfer between the headset and Blu
Specifications bluetooth headphones 1,For iPhone,ipad,PC,PDA... 2,Foldable/compact 3,Standby:300hrs 4,2013 new bluetooth headsets bluetooth headphones , New Sport wireless bluetooth headphone, foldable bluetooth stereo headset Sport wireless bluetooth headphone 1,For iPhone,ipad,Tablet PC, PDA... and any devices with bluetooth function2,Foldable and compact 3,Standby:up to 300 hrs Features: *Bluetooth version 2.1+EDR, Class II*Bluetooth Profiles: HSP, HFP, A2DP and AVRCP*Demension:151*75*156mm*Talk time&music playing time: up to 12 hrs*Standby time: up to 300 hrs*Charging time:less than 3 hrs*Battery capacity: 120 mAh*Operation distance:10 meters*Chipset:CSR*Weight:106g*Frequency Response is 22-18000 Hz Packing info.: *Pcs/Ctn:20pcs/ctn*Ctn size:44*38*38cm*GW/NW:7.5kg/6.5kg*Q'ty/20':440 ctns; Q'ty/40': 940 ctns Accessories: Charger: 1pcUser
Specifications Wireless Headset Bluetooth Headset 1.Comfortable design 2.Accept OEM 3.Small And Nice 4.Multiple functions Wireless Headset Bluetooth Headset|Headset|wired bluetooth headset| bluetooth headset 1.Comfortable design. 2.Accept OEM. 3.Small And Nice. 4.Multiple functions. 5.Bluetootch version:3.0. 6.Supported bluetootch profiles.headset, hands-free,advanced audio Distribution,Audio/video remote control. 7.Talk time: up to 15 hours. 8.Music time; up to hours. 9.Standby time: up to 15days. Item NameWireless Headset Bluetooth HeadsetStyleNeckbandBluetootch versionBluetootch versionCommunicationWirelessConnectors2.1+EDRFunctionBluetooth,Waterproof,MicrophoneMOQ15 days
Specifications 1.have void prompt function 2.can connect more than one bluetooth equipment 3.show the battery status 4.super stereo and thin Voice prompt wireless stereo bluetooth headphones 1. 100% Brand New,All Products are QC Passed.2.Best quality, factory supply ,comptitive price,fast delivery.3.Each part is tested before shipping and 100% working. 4. Replace your broken,damaged or unusable lcd screen.5.the bluetooth headphones has voice prompt function and show the battery status of phones,it can last long time. you will enjoy its super stereo.6.Good service and quick feedback in case of any questions about the stereo bluetooth headphones Returns:1. If you are not satisfied for any reason (Broken, Defective, Purchased in error) please cont
Specifications 1,New Design Model 2,Factory High quality and cheaper price 3,Best product for your sale 4,Large in stock BLUETOOTH STEREO HEADSET USER GUIDE I. Introduction NEXTPREVIEWLED INDICATIONMULTI-FUNCTION BUTTOM(MFB)VOLUME UPVOLUME D
Specifications 1.talking time :3 h 2.standby time :120h 3.transmitting distance :10m 4.Bluetooth Version :v3.0 5.chip:CCMIC new smallest wireless bluetooth headset for samsung Specifications: Brand NameJPModelJP-BH99AInterface TypeUSBStyle in-ear/hear hookproduct size35*15*10mmProduct NW8gUnit Packing size167*83.5*40mmProduct GW54.4g Features and Advantages:1. Fashionable looking ,Ultra Slim and Ultra Smart Design . Removable type ear hook Products through bluetooth BQB certification2. small size and light weight make you to convenient to use 3. Three different sizes of ear plugs, wearing more comfortable 4. Technology digital signal processing - DPS. 5. Memory matching + echo elimination + voice dialing 6. support all of the mobile phone 7. the bluetooth version 3.0,8. signal sending interval extending to 0.5 seconds, chip workload greatly reduced
Specifications * bluetooth headset * bluetooth headset with BQB patent certification * bluetooth headset with fm radio,mp3 function bluetooth headset BH-10 Bluetooth headset Technical SpecificationsColorsBlack/White/pink/yellow/purple/green/blue/ red/orange order quantity more than 1000 set can choose more colourCapacityExternal TF card slot for memory 1GB,2GB,4GB,8GB,16GB,32GBSize and Weightunfold specificationLength:150 mm,Width: 140.mmDepth: 55 mm,Weight: 46 gfolded specificationLength:115 mm,Width:75 mmDepth:50 mm,Weight:46 gSpeakerSpeaker size:27mm *2 Power:2W4Ω impedance: 32Ω±15% Resonance 220Hz±20%HZ Sound Pressure: 130±3 dB at Distortion: 5%less Pure tone Sine wave: 0.8V Effective Frequency Band: Fo~20KHzInput and outputInput when power on ,output when power off USB2.0 High Spee
Brand Name: OEM Model Number: BK201 Style: Headband Communication: Wireless Connectors: USB Use: Computer Function: Bluetooth Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: Color box with plastic or OEM Delivery Detail: In 20 working days after get deposit Specifications 1. stylish design with lowest price 2.Built-in high capacity battery, can work 10~12 hours when full of electricity 1. Fashion appearance, firm structure, the PP + ABS/PC material,2. Headset with three operation button, easy to use (manual for reference)3. The one-piece microphone headset, also can do as a headset.4. Headset uses advanced special speaker, excellent sound quality .5.Built-in high capacity battery, can work 10~12 hours when full of electricity
Specifications Luxury Design Wireless Bluetooth Stereo Headset Heart shaped Earphone Headphone for Universal Mobile phone S3 S2 lStylish clip-on headsetHM1500 is stylish clip-on design. Using a clip to attach the headset to your clothes, use a comfortable earpiece and microphone for the protection of privacy. lVibrationUse the vibrating alert for call notification in noisy environments or when your handset is on silent. lNoise reduction and echo cancellationEliminate unwanted background noise during calls with noise and echo cancellation DSP technology for crystal-clear conversation. lAdvanced multipoint-connectivity with two mobile phonesThe HM1500 boasts multipoint technology, allowing direct connectivity between HM1500 and two mobile phones. lAutomatic volume adjustmentWith automatic volume adjustment, HM150 will raise the volume of your conversation automatically when the background ambient noise level increase, and lower the volume when background noise decrea