Specifications Mini Bluetooth Speaker 1.10 meters working distance 2.With hand free function ,noise cancelling 3.Bluetooth standard V2.0 Mini Bluetooth Speaker Bluetooth Speaker ,With hand free function ,noise cancelling1).Bluetooth 2.0+EDR, support A2DP V1.22). 10 meters working distance3).Line in function4).400mAh battery5). 4~7 play hours6).3w rating output7).Power supply: USB8).Dimension: 60D X 58H(mm) *supports for A2DPV1.2 and AVRCPV1.4 Profile:*With high level of integration , low cost and low power*Bluetooth standard V2.0*Support A2DPV1.2 and AVRCPV1.4Profiles*Work with all sound source with 3.5 audio interface product like : MP3 ,Computer ,mobile phone ,CD player etc*From a range of up to 10 meters from the speakers, wirelessly stream music from any Bluetooth-enabled device such as your mobile phone, notebook, iPhone or iPad. *With music pouring out of its two powerful 3-inch driver
Brand Name: OEM Model Number: MPS-828 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Channels: 1 Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Certification: CE/Rohs/FCC/REACH Material: ABS Power Source: USB power supply cable Guarantee Period: One year Battery: Lithium battery Packaging & Delivery Packaging Detail: Color box: 115*95*62mm Carton size: 53*25.5*36CM QTY/CTN: 50pcs Delivery Detail: 10-25days Specifications MPS-828 Patent product hot sell bluetooth speaker 1.CE.ROHS.FCC.REACH 2.Support bluetooth 3.Cute fashion design 4.OEM/ODM MPS-828 Patent product hot sell bluetooth speaker Technical details: Power supplier:DC5V Output power:2WFrequency:200Hz——18KHzSignal&noise ratio≥60dBImpedance:4 OHM(Ω)Output:3.7V~4.2V+0.05V Input:5VSpeaker Unit:40mmCase Material:ABSDimensions:H50mm*D52mmWeight:58.5gColor:OEMLithium battery capacity:400mAh
Specifications Bluetooth Speaker bluetooth 2.1+EDR LED Indicator Lights Stereo,Noise Canceling Bluetooth version: V3.0+ EDRBluetooth spec:HFP 1.6 A2DP 1.2,AVRCP 1.4speaker output power:3 WImpedance: 4 Ω Frequency response: 100~15kHzspeaker size: 45mmS/N ratio: ≥80dBDistortion: ≤1.0%Microphone sensitivity: -42dBAccessory: Micro-USB cable, 3.5mm insert cableBattery: 500mAh/5VPlay time: up to 8 hoursCharge time: 2 hoursSize, weight: 60 mm (L) x 60 mm (W) x 50 mm (H),80g 1.Play stereo music from any A2DP sourceAux line in for portable music players,3.Built-in stereo Bluetooth transfer technology6.Portable and can be connected to laptop or desktop PC with 3.5mm jack cable. 7.Functions: - Switch on / off, Pairing Transfer stereo music from any A2DP source or other portable music players,volume adjustment8.campatible with: iPad/iPhone/Galaxy Tab and various smartphones10.Materials: ABS Plastic,12.
Specifications Bluetooth Speakers Y1 1.Bluetooth 2.0 2.Bluetooth Stereo 3.Distance: 10m 4.DC 12V, Power 4X4W, 4 Imported Speakers
Brand Name: HAIMAN Model Number: B10-01 Type: Passive Use: Home Theatre,Portable Audio Player,Mobile Phone,Computer,Outdoor Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Shell material: Wooden Colour: Wooden color Function: Can add/decrease functions depends on clients'requirements Packaging & Delivery Packaging Detail: One B10 bluetooth mini speaker packing size:60*80*53mm One B10 bluetooth mini speaker packing weight:83g Delivery Detail: Within one month after deposit Specifications 2013 wooden bluetooth3.0 speaker Bass mini speaker Vibration speaker WELCOME TO HAIMAN SPEAKER CO.,LTD &nb
Specifications wirless bluetooth speaker for mobile phone 1.Universal USB port 2.As big as golf balls 3.high quality Mini golf wirless bluetooth speaker for mobile phone Description Bluetooth Specification :V2.1+EDR Class II Surpport Mode:A2DP Frequency range:2.4GHZ Rated Charging time :2.5 hour Rated power :2W SNR>60Db Work Volt:3.7V Charging Volt:USB 5V Color : Multi color optional How to use this Bluetooth Speaker ? 1, Press the switch of the golf ball , the indicator will flashing 2,Turn on your mobile or your PC Bluetooth serching F6, your mobile and PC will showing EARISE F6 3,On the PC will showing EARISE F6, Match Successed 4,Can enjoy the music from your PC or Mobile 5,Make you enjoy the wonderful feeling of the F6 bring you Bluetooth Speaker Application &nbs
Specifications Android Robot Bluetooth Speaker 1. Bluetooth and FM Radio 2. TF Jack and Mini USB interface 3. MIC Handsfree Android Robot Bluetooth Speaker
Specifications bluetooth speaker 1.Perfect sund 2.Support TF card 3.Hands free 4.welcome OEM 2013 best outdoor wireless bluetooth speaker with hands free function (1)Unit Size: 60*60*50mm(2)Weight:230g(3)Color: various colours for options(4)Material:metal+palstic Product Specifications:NameBluetooth SpeakerModel No.BLF-BS019Bluetooth VersionV4.0Loudspeaker output5wHand-free FunctionYesMusic from TF CardYesDistortion<0.5%RF Range10mFrequency response280HZ-16KHZLoudspeaker Output5wBattery voltage/capacity: 5V±0.5VSignal-to-Noise ≥ 95dBBattery Capacity820mACharging TimeAbout 2 hoursPlaying Time10 hoursFeatures: 1 Connect 2 phones at the samet ime2 The top CSR chip, bluetooth 4.0 standard, power saving, 10 hours of&n
Specifications 1.Powerful 2.1ch Bluetooth Speaker 2.USB, SD, FM, AUX Function 3.With Remote control, LCD Screen, LED light 4.Plastic box,OEM 2.1ch Bluetooth Speaker, with USB SD FM AUX Function Output Power15w+6wx2Speaker UnitSubwoofer: 4"*1 4Ω Satellite: 1.5"*2 4ΩFrequency Response40Hz-20KHZS/N≥65dBT.H.D.0.1%Separation≥40dBDimensionL220xW220xH145mmColor boxL278xW255xH185mmCartonL570xW385xH270mm, 4setsN.W.6.6KGG.W.8.6KG
Specifications mini bluetooth speaker 1.ABS+ Aluminum 2.fast delivery 3.one year warranty 4.CE,FCC,ROHS certification Newest Mini Bluetooth Wireless Speaker, Rechargeable and Portable 2012 new mini wirelessBluetoothspeaker with hands free for mobile phone(music angel bluetooth speaker) Product Description It is an ultra-compact portable Bluetooth stereo speaker w.Compatible with all Bluetooth-enabled mobile phones, Tablets PC/or any device with an AUX-In 3.5 mm interface. Includes an built-in omni-directional microphone perfect for conference calls or answering calls hands free. Technical Parameters:Rated Impedance:4ohmRated Power:3wR
Brand Name: Treetop Model Number: BS200 Type: Active Use: Portable Audio Player Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) colors: red black, silver black, white blue Packaging & Delivery Packaging Detail: NW/GW: 6.4/7.2KGS/CTN, 20PCS/CTN, ITEM SIZE :22.5*13*4.5CM, CTN SIZE:50*28*24.5CM, 0.03CBM/CTN Delivery Detail: 20-25days after payment received Specifications Hot sell bluetooth speaker 1,Portable,mini size. 2,Rechargeable. 3,Volume controlled by bluetooth 4, Cool package, Hot sell bluetooth speaker , BS200 is a new product, which is very popular and estimated to be sold well in the furture market, specially for the bluetooth speaker area. Specifications: Rated power: 1.7w*2, THD <1%Frequency response: 100HZ-20KHZ S/N > 70DBSpeaker: 40mm, 1.7w/4 Ω *2Suppor profile: A2DPEffective Range: 10MRechargeable batteries: 500maDimension: 165L*70W*42H mmWeigth:185g
Brand Name: HQS Model Number: HQS-SP001-7 Type: Passive Use: Portable Audio Player,Mobile Phone,Computer,Outdoor Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Version: Bluetooth V2.1+EDR Frequency range: 2.402GHZ-2.480GHZ ISM Band Wireless transimitters standards: CLASS 2 Channel: 79channels of 1Mhz BW Transmission range: less than or equal to 10M Frequency response: 20HZ-20KHZ SNR: 80db Power: Rechargeable battery 3.7V 600mAh Charging time: 2-3 hours Life time: About 6 hours(battery saturation) Packaging & Delivery Packaging Detail: color box. Delivery Detail: 1-3 days after got the payment. Specifications bluetooth speaker 1.Portable wireless speaker design 2.Support the wired LINEIN input 3.Support bluetooth answer,hang up,redi High-fidelity Bluetooth Speaker 1. Portable wireless speaker design,beautiful and applicable
Specifications Kaidaer Bluetooth Speaker Specifications 1. Easy connection, no wires. 2. Built-in rechargeable battery 3. Works with all Function:1, the output frequency: 3 w RMS THD = 10%2, frequency response: 150 ~ 1800 hz3, the signal-to-noise ratio: 90 db or higher4, the speaker: 2 inches in 52 mm (diameter), 4 ohm5, store, download: download USB cable directly6, the power input: USB power cable goods 5 v / 500 ma, the ac power adapter7, bluetooth connection: the default boot in FM state, press twice MOOD audio will sound, mark has been transferred to the bluetooth connection, then you can proceed to the bluetooth connection, with a new bluetooth devices, mobile search found OVC3860 pairing connection after the new equipment, enter the password (0000), and play music after matching success, namely into bluetooth play mode.8, the bluetooth indicator light Chang Liang for connection to the outside sound playback.
Specifications 1.Fashion design 2.Only the size of an egg 3.Good quality of sound 4.Can use at any time charging 5.Light and clever Bluetooth mini speaker Bluetooth hamburger Speaker-Creative hamburger design, bluetooth music receiver, bluetooth audio receiver , portable mini speaker .-Stereo bluetooth module, bluetooth speaker -10 meters remote control scope-Extendable bass tube for deeper and stronger sound-Build-in 3.5mm audio cable for directly plug into Ipod,MP3, computer etc-Build-in high capacity Polymer battery-Works with Ipod, Iphone, Mobile, Computer etc. Reference photo: Technical Parameters : Power supplier:DC5V Output power:3W(1KHz,THD10%)Frequency:200Hz——20KHzSignal&noise ratio≥80dBImpedance:4 OHM(Ω)Li-ion Output:5V Li-ion Input:3.7V~4.2V+0.05V Polymer battery:400mAhSpeaker Unit:40mmCase Material:ABSDimensions:Dia60mm*H45mm (closed resonation)Talkback function:MICWeight:90gColor:Black/Red/W
Brand Name: SINAVA Model Number: BS02 Type: Passive Use: Mobile Phone,Computer,Outdoor Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Design: Mini Packing: Retail package Price: cheaper price Quality: TOP Colors: Can Mixed in Stock: Yes Port: Bluetooth Packaging & Delivery Packaging Detail: Retail Packing/Carton Packing Delivery Detail: 1- 3 days depend on your qty Specifications 1. Wireless Mini Bluetooth Speaker 2.Output power: 3W 3.Excellent sound quality 4.Suit for notebook 450MAH Portable 3.5mm Wireless Subwoofer Mini Bluetooth Speaker 1.Bluetooth wireless audio transmission 2.With phone handsfree. &nb
Specifications BQB certificate Waterproof design Enhanced acoustic performance Applicable models suitable for all bluetooth enabled mobil phoneFrequency 2402MHZ-2480MHZ ISM bandAbout 3 hours of working timeAbout 40 to 50 hurs of standby timeConnection distance 10MConvenent to carry for outdoorsRubber finish Kingsun: China supply chain solution Whatever you need, youcould find the solution from kingsun Since its establishment in 1995, Shenzhen Kingsun Enterprises Co., Ltd has been expanding its business fields globally and continuously growing up towards another milestone.With 10 professional product developing engineers, Kingsunprovides OEM & ODM service to clients all over the world, optimize the supplying chain in China to provide the best solution for clients. Kingsun has 30 professional sales who handle major clientsin Europe (70%), United States (20%), Southeast Asia and others(10%). The average production output is about 100 containers per
Specifications 2013 New Mini Bluetooth Speaker with Hands Free Function 1. Speaker for MP3/MP4 2. Speaker for Phones 3. Speaker for Laptop 2013 New Mini Bluetooth Speaker with Hands Free Function ----------Features----------------------------------------------------------1. High Glossy Surface 2. Easy access volume control3. Excellent Sound Performance4. Plug and Play / No Driver Installation Required5. Magnetically Shielded to prevent distortion from screens6. Compatible with all Brand Name and Model PCs and Laptops7. Has hands free function 8. Built-in li-ion battery 9. 3.5mm jack 10. CE,ROHS ----------Specification----------------------------------------------------- BMS002Basic InformationMaterialMetal + ABSAvailable ColorBlack, Silver, Blue, RedNet Weight243 gGross Weight340 gSize57*59.5*59.5 mmLogoPad printingAccessoriesUSB cable, audio cable, user manualPacking infoGift Box 111*68.5*70mmCarton Size50 pcs/carton 47.5*40*20
Brand Name: OEM Model Number: YD-107 Channels: Other Special Feature: Portable Place of Origin: Guangdong China (Mainland) Material: ABS logo: silk/laser color: black package: gift box Power Supply: Built-in Battery, Mini USB Packaging & Delivery Packaging Detail: gift box Delivery Detail: 20 working days after sample confirmed(depends on stock) Specifications Bluetooth VersionaaBluetooth V2.1+EDR Frequency Responseaa20HZ-20KHZ Rangeaa10 meters SNR aa80dB Power Supply: Built-in Bat CSRResolution:RDASize :56*65mmWeight:220gColor: BlackMaterial:ABSBluetooth Version:Bluetooth V2.1+EDRFrequency Response:20HZ-20KHZRange:10 meters SNR morn than80dBPower Supply: Built-in Battery, Mini USBBattery :Lithium Polymer Battery 3.7V/500MAsupports bluetooth calling and hands freesupports play memories for the last musicsupports TF cards360 degree omni-directional sound
Specifications 1. BQB certificated 2. Colorful for selection 3.Wireless bluetooth speaker Output Power3wSignal-to -Nosie>75%Frequency Response60--20khzImpedance3ohmEffective distance10mDimension of the productL73*W73*H78.5mmWeight of the product210g Payment Terms : Trade Terms: FOB Shenzhen Payment Terms : T/T , Western Union and L/C are welcome Warranty One year limited warranty More concerned for our Items , pls do not hesitate toinquiry now!More information , pls visit our website:www.szonesky.cn
Specifications Mini new design cheap portable bluetooth speaker 1.Ver2.1+EDR (Optional) 2.Support TF card 3.hand free call 4.RoHS,FCC,BQB Mini new design cheap portable bluetooth speaker *Product Description--This speaker supports any mobile device with Bluetooth function such as iPhone, iPad, Samsung Galaxy/Note/tablet etc. --You can plug this speaker to any AUX (speaker) port such as laptop/computer and it can work as wired speaker without bluetooth function. The sound quality is the same! --The speaker comes with internal mic, so it makes your hands free while you are calling. --The bluetooth can be connected easily. The latest driver model provides very reliable and solid connection between devices. --It is metallic pain so it won't leave any finger mark when you touch it. *Technical Details Bluetooth VersionBluetooth Ver2.1+EDR (Option) Transmission distanceUp to 10mWorking Tim
Brand Name: N/M Model Number: BSP02 Use: Portable Audio Player,Mobile Phone,Computer Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Name: popular bluetooth speaker with MP3, Support TF Card color: Black, Silver, Blue, Red keyword: bluetooth speakers Packaging & Delivery Packaging Detail: color box Delivery Detail: 3-5 days Specifications New Mini Bluetooth Speakers 1.supprot wireless 2.support TF card 3.support phone handsfree popular bluetooth speaker with handsfree, Support TF Card, ----------Features----------------------------------------------------------1. High Glossy Surface 2. Easy access volume control3. Excellent Sound Performance4. Plug and Play / No Driver Installation Required5. Magnetically Shielded to prevent distortion from screens6. Compatible with all Brand Name and Model PCs and Laptops ----------Specification----------------------------------------------------- Basic InformationMater
Specifications 1. bluetooth speaker new model 2. with FM raido 3. support TF card 4. use for phones New product J2 in special design bluetooth speaker with TF support for phones Eternal love: red, blue, black, orange, yellow, purple 6 colors for customers to choose. Insert TF card, can use for iphone and Ipad Product features: 1.Global unique patented technology-----The expandable cavity resonance(Increasing the cavity resonance space) 2.TF card speaker: support TF card,battery inside,Independent play,Do not need to connect with other audiodevices 3.Adaptation of audio equipment:MP3,MP4,PSP,computer,mobile phone and so on Audio equipment
Brand Name: OEM Model Number: TT6 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) support: micro sd card (TF card)slot FM radio: yes Speaker size: 8.5cm *5.4cm*5.0cm set: time, calendar, alarm clock color: Pink, Green. Blue .Silver. Black Packaging & Delivery Packaging Detail: retail packing 100pcs/ctn Delivery Detail: 5-7 days, exactly by order quantity. Specifications 1.mini portable bluetooth speaker 2,support micro sd card slot 3, set time, clock, calendar 4, material:Aluminum alloy 2013 Newest Designed professional mini portable bluetooth speaker Description: 1, Support micro sd card (TF card ) Memory Play:Auto remember the last song & play mode played 2, Can play the usb music directly 3, Built-in FM Radio,radio module,automatic atation search,pristine sound quality,easy to use
Brand Name: JXD Model Number: X-16 Type: Active Use: Home Theatre,Portable Audio Player,Karaoke Player,Computer,Stage,Outdoor Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: 30pcs/ctn Delivery Detail: 3-7days Specifications 1.Portable Mini-boom 3.5mm Bass Bluetooth Speaker 2.Output power: 3W 3.Excellent sound quality 4.Suitable for notebook Model:JXD-X16Features: Bluetooth speakers,Power on/off controlOutput power: 3W Incorporates space-saving design Excellent sound quality Suitable for notebook and smart phoneImpedance: 24Ω Frequency range: 60 to 20Hz Acoustic audio frequency input connection: 3.5mm stereo 1. Portable Bluetooth Mini-boom 3.5mm Bass Mini Speaker 2.Output power: 3W3.Excellent sound quality 4.Suitable for notebook laptop5.1 year Gurantee Features:--P.M.P.O:280W --Frequency response: 88Hz-20KHz --S/N >50dB --Size: 74*74*45mm
Brand Name: Glorybrother Model Number: ES150 Type: Active Use: Computer Special Feature: Wireless Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: White box,Manual Delivery Detail: 35-50days Specifications Wireless Bluetooth Portable Speaker 1.Blue LED indicator 2.good quality sound(max output:2w*2) 3.CE&rohs 4.sensor Touch Feature: 1. Cube speaker with bluetooth function 2. L143 x W143 x H1107 mm 3. Max. Poer Output: 2W x 2 4. Frequency Range: 180-20KHz 5. Sensitivity: > 60 DB 6. Sesnor Touch to control volume Up/Down, Play/Stop, Next/Previous song for playing 7. Blue LED indicator 8. Built-in Rechargeable Lithium battery (charged by USB cable) 9. 3.5mm Audio Jack cable(included) or MP3 player or Bluetooth 10. Audio Cable and USB Cable for re-charging battery are included &
Specifications mini mobile phone bluetooth speaker 1.MP3 Function with bluetooth 2.With FM 3.Rechargeable battery 4.Audio-in Cool mini mobile phone bluetooth speaker 100% fit your device Function & Feature:- 100% and high quality - This machine is a portable multimedia speaker, which is disign exquisitely, convenient to carry- Supply HIFI sound quality, low power dissipation - PC, laptop, computer, MP3, MP4, mobile phone which have audio output connector to it directly - The machine search radio station. For Bluetooth music con
Specifications professional silicon wireless bluetooth speaker 1.Speaker driver:40mm 2.Battery;400maH 3.Material:Silicon + plastic professional silicon wireless bluetooth speaker selling point1.Mini pop up, portable, unique design, small case give big and rich volume; 2.Stereo sound effect, wonderful bass, sound beyond size; 3.Play time 2-6 hours 4.Music will be continued automatically after calls. So calls never be missed. 5.It can be adsorbed on smooth plane,for exmaple: glass of car, smooth tabletop. 6. Made of high quality silicone, calls on it While you are enjoying music from mobile, your music
Brand Name: jphx Model Number: sk-s10 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Home Theatre,Portable Audio Player,Mobile Phone Special Feature: Wireless,Portable,Mini,Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) color: blue support: TFcard Style: Wireless Mini Speaker with Rechargeable Battery product weight: 0.207KG working range: up to 10m the gross weight: 17.4KG/carton the net weight: 16.4KG/carton package: gift box Packaging & Delivery Packaging Detail: paper box Delivery Detail: 3-7days Specifications 1.Fast making Sample Time:only need 3 days 2.Various color available for your option 3,100% Product inspected by QC Speaker SpecificationSupport A2DP, AVRCP,Headset,Handsfree ProfileBluetooth Version: V2.1Working Range: Up to 10mWorking Time:5 HoursDimension:60*60*50mmNet Weight:230gSpearker:45mmLoudspeaker Output:3WFrequency Response:280HZ-16KHZSignal-to-Noise≥95dbDistortion:≤0.5% Battery Vol
Brand Name: OEM-Bluetooth speaker with USB Model Number: A1 Bluetooth speaker with USB Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage Channels: 1 Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Use for:: laptop,mbile phone,iphone,ipad,ipod,psp special feature:: mini,portable,rechargeable,powerful Case material:: Pure ABS Surface treatment:: PU paint spray Output:: 3W Color:: white/black/red (can be customized) Speaker driver:: 40mm Weight :: 90g Working time:: 12 hours (Base on the bottom volume) Dimension:: Close:(D)60.2mm*(H)47mm Open: (D)60.2mm*(H)73mm Packaging & Delivery Packaging Detail: Carton size: 58*29.3*48.5cm QTY/CTN:(pcs) 100pcs N.W/CTN:(kg) 14kg G.W/CTN:(kg) 15.4kg Delivery Detail: 16 working days Specifications 1.woofer mini speaker for mp3,mp4,PC,iPhone 2.40mm powerful driver 3.12 hours playback 4.link speaker 5.CE ROHS speaker Bluetooth speaker with USB for mp3,mp4,iPhone,iPad,iP
Specifications Smallest long distance bluetooth speaker 1.Aluminum-alloy scroll style cover 2.up to 8 devices can be stored 3.Bluetooth V2.1 Hot Products: Smallest long distance bluetooth speaker Key features and functions: 1.Smart and pocket Bluetooth speaker with built-in 550mAh Li-ion battery and extendable case.2.Bluetooth synchronous broadcasting and handsfree conversation function. 3.Bluetooth V2.1+EDR,class II,up to 10 meters 4.Support A2DP,AVRCP,headset,handfree profiles. 5.Support multiple pair (up to 8 devices),connect with the last used device automatically when power on. 6.D45mm larger driver offers 3W power and precise highs for superb sound.7.Vacuum-bass system.