Brand Name: Ray lion Model Number: 300 Style: In-Ear Communication: Wireless Connectors: 3.5mm Use: Portable Media Player Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) weight: 10g Packaging & Delivery Packaging Detail: 100pcs/CTN Delivery Detail: 3-5 working days after confirm payment Specifications stereo Bluetooth headphone for mobile phone 1)wireless stereo 2)Bluetooth range: 10meters 3)OEM Chip & Version: ISSC (v.2.1 + EDR)Profile:HSP & HFPFrequency range: 2.4GHz-2.48GHz* Transmission distance: Up to 10M (33ft)Operating voltage: 3.6VOperating current: ≤35mAStandby current: ≤2mACharging time: 2 to 3 hours* Talking time: Up to 8 hours* Standby time: Up to 200 hours Festures:Microphone Earphone:1.Great sound quality and bass response2.Hands-free headset for Compatible with iphone and ipod3.Cord mounted ON/OFF button which lets you take calls and hang up easily4.Standard 3.5mm earphone plug fits all MP3 players with 3.5mm jac
Specifications 1.Bluetooth stereo headphone 2.Eye-catching design 3.Wanderful sound quality Bluetooth Version :ISSC 3.0+EDRType:Stereo headphone with internal micOperation Distance:10mRange of Frequency: 2.4 to 2.4835GHz ISM band Sensitivity:85dB Music Format MP3 at WMAStandby time up to 160hours Music Playing Time 5 hours Normal Charging Time Within 3 hours Battery 3.7V 200mA Rechargeable Li-Polymer RF Output Power -6dBm to 4dBm Operating temperature -10’C to +55’CSupports Bluetooth Headset, Handsfree, A2DP and AVRCP Profiles 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,
Specifications Cool color bluetooth headphone s450 new fashion design with high quality floding stereo bluetooth headset 1.OEM brand 2.CE Cool color bluetooth headphone s450 new fashion design with high quality floding stereo bluetooth headset bluetooth headphone s450 for phone colorful bluetooth headphone s450 high quality bluetooth headphone s450 stereo bluetooth headphone s450 Specification: 1).Bluetooth wireless headband earphone with stable transmit 2).With microphone with valid receiving signal distance in 10meters 3).With volume control design 4). Built in Lithium battery which can be charged by computer easily 5).Length of band can be adjusted Use range: 1). Pair with the Bluetooth mobile, wireless enjoy mobile phone music and incoming call.2).Pair with PC (with Bluetooth function ), wireless enjoy&nbs
Brand Name: VCOM Model Number: DE703 Style: Headband Communication: Wireless Connectors: USB Use: listen to music, moblie phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Color: White or customised Accessories: usb charger Stand-by time: 300 hours Talk time: 8hours Range of wireless connection: 10 meters Transmitting power: Glass2 Operating frequency range: 2.40GHz-2.48GHz Packaging & Delivery Packaging Detail: Colorful box or blister . OEM is available Delivery Detail: 25-30 days after reciving the deposit Specifications Fashionable Wireless Stereo Bluetooth Headphone 1.Fashionable design 2.Stereo, great timbre 3.Low price 4.OEM: available New Design Fashionable Folded Wireless Stereo Bluetooth Headphone &nbs
Specifications 10m connection Built-in microphone and rechargeable Li-ion battery Key Specifications 1.Frequency response : 20 Hz – 20KHz 2.Bluetooth® : V2.1 + EDR 3.Transmission Mode : GFSK 4.Operating voltage : 3.7 V 5.Signal-to-noise ratio : > 80 dB 6.Channel separation : >30 dB 7.Distortion : <2% Feutures: 1. Pause the music & Play back automatically when receives an incoming call 2. Micro USB connector allows charging via AC power adaptor or computer USB por
Model Number: 75-07314-039 Style: In-Ear Communication: Wireless Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Color: black Talk time: 5 hours Standby time: 90 hours Transmission distance: 10M Specifications 1.Mini Cool Bluetooth Headphone 2.Black 3.Bluetooth V2.1 4.Talk time: 5 hours ProductMini Cool Wireless Bluetooth HeadphoneProduct Highlight1. The mini Bluetooth headphone supports Headset Profile and Handfree Profile.2. Last number redial, call rejection and adjust volume, etc.3. Through the use of Bluetooth wireless transmitter, the Bluetooth headphone makes online chat reality.4. Cell phone loss protection, call note.5. With stylish design, the mini Bluetooth headphone functions as an ornament.6. Application: The mini Bluetooth headphone, a type of wireless products, offers compatibility with all famous branded Bluetooth cell phone and is used as a handsfree. Coupled with a Bluetooth dongle, it makes online voice chat a areality.Spec
Brand Name: Wsound Model Number: TF500 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) Bluetooth version: V2.1/3.0+EDR Mode: Handsfree/headset/AV/AV RCP profite Transmit power: class 2 Radio frequentcy: 2.4Ghz transmission range: 10m Talking time: 8h standby time: 120h music play time: 5h battery capacity: 120mAh type: wireless headset Packaging & Delivery Packaging Detail: gift box with 1.bluetooth headset 1 * ear hook 1 * User's Guide 1 * Charger 1 * Packing 2 * earplugs 1 * headphone cable Delivery Detail: 3-15days Specifications Bluetooth Headphone best quality wireless headset Easy to use and stable Headset, Handsfree, Multi Wireless bluetooth headphone of best price TF500 Neckband bluetooth headphonememory Card player headphonesStereo bluetooth headsetCommonly Use for mobile/pc/tabletFor Call and listen musicBluetooth V3.0 EDR2.5mm charger p
Specifications 1.Bluetooth Headphone 2 Fashionable sports stereo wireless bluetooth headset Hotest Bluetooth Headphone Fashionable sports stereo wireless bluetooth headset for OEM/ODM Specifications1. Hotest Bluetooth Headphone Fashionable sports stereo wireless bluetooth headset 2.OEM/ODM welcome. 3.Best price and timely serviceBluetooth Version: 2.1 + EDRWorking Distance : Up to 10 metersFrequency response : 20~20k(Hz)Frequency: 2.4GHz Impedance: 32Ω Battery: 3.7V 180mAh USB Inpu
Specifications *Brand New Wireless Stereo Bluetooth Headset *Elegant Fashion Design *High Acoustic Fidelity *Extremely Competitive Price Brief Introduction: Speaker diameter: φ40 milimeters Impedance: 32 OhmsSensitivity: 108dB S.P.L.at 1KHz;Rated power:20mWAggregate capability:50mWFrequency Response:20Hz-20,000HzMicrophone Unit:φ6*5mmImpedance:≤2.2KOhmsFrequancy Response:30Hz-16,000HzOperating voltage:3.0V Specifications: 1)Support systems:audio equipments with bluetooth functions,such as PC,cellphone,MP3… ; 2)Bluetooth protocol standards:Bluetooth V3
Brand Name: kingartor Model Number: KA-M0584 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: China (Mainland) Colour: optional MOQ: 1000 Packaging: optional Logo: customized logo Warranty: 1 year Packaging & Delivery Packaging Detail: opp polybag Delivery Detail: As per exact quality and customer's require Specifications 1.bluetooth headphone wireless headset 2.CE and Rohs 3.MOQ 1000pcs 4.OEM order welcome 5.Sample ok headphone wireless bluetooth headphone Features: 1. headphone wireless bluetooth headphone 2. Manufacture with competitive price & good quality3. Imprint customer's logo as request4. Excellent sound performance 5. Custom packing design service6.1- 2pcs free samples available 7.headphones for personal use, for gift to friends ,for company sales promotion ,for supermarket retail or wholesale or any other Enterprises or institutions requires
Brand Name: xk Model Number: xk-1063 Style: Ear Hook Communication: Wireless Function: Bluetooth Place of Origin: Guangdong China (Mainland) color: as photoes Packaging & Delivery Packaging Detail: retail package or as your request Delivery Detail: Depends on your quantity,Mostly,3~7 days after payment done Specifications Sport Bluetooth headset 1)Bluetooth V1.2 compliant for mobile phone or PC 2)Talk Time: Up to 4 hrs 3)Stand-by time:200 hrs Welcome to Our Fashion Shop High Quality Sports Wireless Bluetooth Headset Specifications:1.sport bluetooth headset 2.wireless 3.used for mobile phone,PC Item High Quality Sports Wireless Bluetooth HeadsetQuality ControlInspection by QC department before shipping.Packing:In retail pp bag or paper, plastic box / blister--Carton box. As per customer's requestPayment TermsT/T, Western Union, Paypal. ect ShippingUsually by air express,such as DHL,FEDEX,UPS,EMS etcService Best afte
Specifications bluetooth headset: Play MMC / SD card, MP3/WMA files stored LCD screen display Netweight: 190g Polym Play MMC / SD card, MP3/WMA files stored 2012 new bluetooth headsetConnected to the computer, read and write files to the MMC / SD card, Function for the card readerFM radio ,covering,cumpus radio band,Suitable for general radio and campus radio listening3.5mm audio output universal ports, MP3 music will be exported to other audio equipment3.5mm Universal audio input port can be used as a computer headsetHigh-quality speakers and sound chamber designed to ensure high-fidelity, CD quality sound effectsRecha
Brand Name: MQIY,SIOMY,OEM Model Number: OY-BT68 Style: Headband,blue tooth Communication: Wireless Connectors: wireless, blue tooth Use: Portable Media Player,player,computer Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) color: multi Packaging & Delivery Packaging Detail: unit tray+blister packing+polybag /window color box. 40pcs/ctn (double corrugated export master carton) Delivery Detail: 15-20 days after deposit Specifications bluetooth headphone foldable design for comfortable wearing quality certificate sound effect high reasonalbe price bluetooth headphone OEM/OEM serviceown design to meet marketdifferent color for aesthetics optionfoldable to comfort wearinghigh quality to relaxing pressuremusic to easing feelingquality CE approval andEnviroment green ROHS material no harm to health Speaker parameter: Speaker diameter: φ40mm
Specifications for iphone 5 Bluetooth headphone Handsfree Headset competitive price test before shipping 100% work fast delivery for iphone 5 Bluetooth headphone Handsfree Headset Features :100% Brand NewGreat Bluetooth Headset with Bluetooth v3.0Extra earphone included allowing you to listern to musics in stereoLong if battery, good receptions Specifications:Color: Black whiteBluetooth Version: V3.0 +EDRTalk Time: Up to 5 hoursRecharge Time: Within 2 hoursSupport Profiles: Headset, Handfree, A2DPPower Source: Built in rechargeable Li-ion batteryMusic Play : Up to 3-5 hoursStandby: Up to 48 - 96 hoursUS Spec Charger included, also chargable with any micro-usb lead/charger
Specifications Wireless stereo bluetooth headphone 1) Stereo sound quality 2) FM radio&mp3 3) 3.5mm audio cable 4) Support 32GB TF card Wireless headphones wireless headset stereo bluetooth headphone 2013 wholesale Feature Stereo Sound Quality.Light comfortable design and easy to use.Stable neckband means versatility for user’s conditions.Seamless switching between music and calls.Easy control panel for different functionsThe headset supports Bluetooth v2.0 + EDR with handsfree, Headset, A2DP (Stereo Music) and AVRCP (Audio Video Remote Control) profiles.Frequency Response is 22-18000 Hz and Total Harmonic Distortion is less than 0.5%.Operating distance: 10-20meters.Range of frequency: 2.4 to 2.4835GHz ISM band.Compatible with mobile phone, PDA, laptops, MP3/4/5 etc.FM function available Specification Bluetooth versionV2.0Solution ISSCEffective Range10-20MSupport the memory cardTF c
Brand Name: OEM Model Number: SK-BH-M6 Style: In-Ear Communication: Wireless Connectors: Bluetooth Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Color: Light black,Metallic ,rubber blak Packaging & Delivery Packaging Detail: Gift Box Delivery Detail: 3-10 Days Specifications Hot mono bluetooth headphone up to 220 hours Talking time:up to 13 hours Bluetooth range: 10M Net weight: 48g SK-BH-M6 hot mono bluetooth headphone BH-M6 has up to 220 hours long standby time and 13 hours of continuous use and Compatible with all Bluetooth-enabled phones,it beautifully works in office.Enjoy fun of wireless via an bluetooth dongle ,it works well with SKYPE,MSN,and VoIP.Crystal clear sound can thoroughly release your hands to enjoy your work!Features:1). Blocks 4 times the external noise2). Ultarlong talk time &light weight3). Support headset,handfree profile4). Redial the last call ,Reject call.Volume adjustable.5). Faster connec
Specifications Unique mono bluetooth headphone Series 1 High quality 2 Low cost 3 CE, FCC, RoHS BQB 4 Patented Products Specifications: Unique mono bluetooth headphone Series 1 High quality 2 Low cost 3 CE, FCC, RoHS BQB 4 Patented Products Main Features:1 High quality2 Low cost 3 CE, FCC, RoHS, BQB approval4 Patented Products5 Supports iPhone,iPad,Skype,MSN 1) Crystal clear and high quality voice for both talking party, noise cancellation, no echo2) Changeable faceplate style (BH006)3) CE (R&TTE, including EMC, LVD AND RF), FCC and RoHS certificate available4) Different packing to choose, OEM logo printing, manual,&
Brand Name: Madedo Model Number: BH503 Communication: Wireless Connectors: bluetooth Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Color: As picture show Style: in ear Payment: WU,T/T,Paypal Shipment: DHL,UPS,FEDEX,TNT,EMS,post Delivery time: 1-3 working days Warranty: 1 year Packaging & Delivery Packaging Detail: Retail packing,OPP bag, Custom packaging Delivery Detail: 1-3 working days Specifications 1.BH503 bluetooth earphone 2.High quality & Wholesale price 3.Fast delivery 4.Paypal accepted 2013 Newest headphone For iPhone 5 EarPods Earphones With Remote and Mic SPECIFICATION Music to your earsListen to your favourite music and stay connected to your mobile device with this wireless stereo headset.Enjoy your musicHear your tunes in high-quality stereo sound and easily access your mobile device's music library without missing a call.Comfort meets sty
Brand Name: OEM Model Number: SZ-HS-002 Style: Headband Communication: Wireless Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: blister Delivery Detail: 4-5 weeks atfer confirmed order. Specifications 1.stereo Bluetooth headphone (bigger earcup) 2.OD40mm speaker drive ; flexible sound output 1.stereo Bluetooth headphone (bigger earcup) 2.OD40mm speaker drive ; flexible sound output3.Bluetooth 2.1V/A2DP built in smart control panel design 4.Foldable design
Specifications Multi-point technology bluetooth headset BH29 Bluetooth Echo and Noise Cancellation Headset Dual-Microphone HOT 2013 Multi-point technology bluetooth headset headphone BH29 Feature :Dual-Microphone CVC V5.0, Echo and Noise Cancellation, Packet/bit Error Correction TechnologyBluetooth Specification V2.1+EDR class 2 Supports connecting to two phones simultaneously Rechargeable 80mAh Li-Polymer Battery Normal charging time: Max 1.5 hours Talk time: Up to 4.5 HoursStandby time: Up to 120 hours Specification * Bluetooth Specification v2.1+EDR class 2 * Multi-point technology, CSR BC6150 chip* HFP V1.5 and HSP v1.1 support* RF Frequency Range: 2.402-2.480GHZ, 2.4G ISM band* Radio Performance: Receive Sensitivity of -90dBm, TX Power Max 4dBm* Frequency Response: 20Hz- 20kHz, Very high Signal to Noise Ratio (SNR): 95Db,Total Harmonic Distortion(THD): 0.1%* 3 Buttons design: MFB, VOL+, VOL-* LED Indicator Status: Blue, Red* Rechargeable 80mAh L
Specifications Mono Bluetooth Headset with 3 Hours Continual Talking 1. High Quality with Retail Package. 2. Good Price 3.Universal using Features: Bluetooth Core: V2.0Bluetooth Profile: 1.1/1.2/2.0+EDRStandby time: ≥ 36hoursTalk time: 3 hoursCharging Time: 2-3 hourStandby Current: 0.7-1mABatery Capacity: 30mA/hWireless Frequency Range: 2.4GTransmission Power: 0 dbmTransmission Distance: 10MEnvironment Temperature: -20/+60 °COperating Voltage:3.7VAdjustable volume Details: NameMono Bluetooth Headset with 3 Hours Continual TalkingMaterialHigh quality ColorBlackDelivery timeFast delivery,within 3-7 daysMOQGoods on handsSamplesOEM is availableDescription1. Made of good quality material2. Popular beautiful grid design 3. Various colors available 4. easy to install5. Delivery fast & Good servicePackingPE Bag,then in carton,carton size:60*39*45cm
Brand Name: OEM Model Number: CM039 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Computer Function: Noise Cancelling Place of Origin: Guangdong China (Mainland) computer: headphone microphone Packaging & Delivery Packaging Detail: paper packaging Delivery Detail: 3-7days Specifications Wireless Stereo Bluetooth Headset Headphone w/Mic 1.Version:2.0V 2.Feasible distance:within 35feet Wireless Stereo Bluetooth Headset Headphone w/Mic Introduction:1.Bluetooth Wireless Headphone with Microphone2.Wireless chat online. (MSN, Skype, AIM, QQ...)Two-side real time wireless connection3.Motile, Portable Use for PC,Laptop, Netbook...4.Wireless operate the Music Player of PC (Controlled by earphone), 5.Former song/Next song, Volume+/-,Stop/Pause/Play6.Pair with Bluetooth Stereo Mobile phone.7.All functions of
Brand Name: Runda Model Number: BH-M29 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: China (Mainland) Talking Time: 8 hours color: black Packaging & Delivery Packaging Detail: Blister card or gift box Delivery Detail: 10-20days Specifications bluetooth headphones Function 1).Chipset:CSR BC6 V2.1 2).Support:Headset,Headfree,Noise-Canceling,Voice-Dial/Mute 3).Multi-point supported: 2 connections simultaneously 4).Broadcast Range:10M 5).Talking Time:10 hours 6).Stand-by time:150 hours
Specifications 1.Sport Bluetooth headset 2.Portable Bluetooth Headset 3.10m receive distance 4. Four colors available Packaging & Delivery Packaging Details: colour box packing Delivery Detail: 1-3 days Specifications Wireless bluetooth headphone fashion bluetooth sport headset 1.2.0USB Charging 2.Built-in rechargeable battery 3.Bluetooth 2012 New wireless bluetooth headphone fashion bluetooth sport headset Bluetooth headset Specification:1.Bluetooth Version: V1.2/V2.0 2,Power:Class2 3,Wireless frequency: 2.402GHZ~2.480GHZ ISM Band 4,Range:10 5,Charging tim:1-2 hours6,Holding time:4-5 hours 7,Product weight:32g/pc8.High quality wireless bluetooth headphone fashion bluetooth sport headset
Specifications beautifully trends, fashion design super power saving, use dedicated charging management, to better protect the lithium battery Technical standards: CSR 8645 program supports Bluetooth 4.0 Transmission distance: 10 meters Dimensions: length 180mm width 160mm thick 45mm Product Weight: 197g (grams) Talk time: 10 hours Standby time: 200 hours Charging time: 2 hours Supported formats: aptx (lossless), AAC-LC, MP3 the SBC Bluetooth headset features:beautifully trends, fashion design support HFP1.6, A2DP1.2 and AVRCP1.4 super power saving, use dedicated charging management, to better protect the lithium battery anti-jamming, strong confidentiality, noise reduction then hang up, redial, reject a call, curved up and down, mute function, built-in Bluetooth priority Features of Bluetooth: * High Quality Blutooth Headset Earphone with Microphone* High Defition bluetooth headset with control talk* Can be easily connected to iphone,ipad,tablet
Brand Name: HFD Model Number: HFD-700+ Place of Origin: Guangdong China (Mainland) Bluetooth version: V2.1+EDR Working voltage: DC output5V Frequency: 2.4GHZ-2.48GHZ Type: Active Use: Portable Audio Player,Mobile Phone,MP3,MP4,Outdoor ,Portable,MP3,MP4,Ipod, Ipad Special Feature: Wireless,Portable,Mini,Noise reduction, Echo cancellation BT headset Channels: 2 (2.0) Packaging & Delivery Packaging Detail: Product size:167.3mm*135.6mm*16.9mm Plastic padding fixed in gift box 50PCS/CTN Ctn size:80*40*39cm G.W.:22.2KGS Accept packing customized Delivery Detail: 3~5 days for order Specifications 1.High Quality bluetooth headphone 2,support micro SD card/BT stereo headset 3, Unique neck-strap design High Quality bluetooth headphone Model: HFD-700+ Features:*Portable bluetooth headset, support micro SD card.*Double damping balancing technology, present perfect music.*Unique neck-strap design for easy carrrying, good choice for using in car or outdoors.*Easy magnet
Specifications Bluetooth headphone for iphone bluetooth receiver Bluetooth headphone for iphone bluetooth receiver handset Specification: Version: Bluetooth V2.1+EDRReceiver distance: 10MFrequency: 2402MHz-2480MHzPlug: USB 2.0Li-ion battery 4.2V 320mAWorking Voltage: DC 5V 500mA Playing time: about 12 hoursS/N: 82dBDriver Unit: 40mmImpedance: 32 ohmsSensitivity: 108dB S.P.L.at 1 KHzRated power: 20mWAggregate capability: 40mWFrequency Response: 20Hz-20,000Hz Detailed images: Organization Structure Chart: Factory photos:
Brand Name: OEM Style: Headband Communication: Wireless Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: blister Delivery Detail: 3-7working days Specifications MINI Handsfree Bluetooth Headset SpecificationBluetooth Profiles : HandsfreeBluetooth Version : V2.0Transmission Power : Class 2Transmission Range : 10 MetersTalk Time : 7 HoursStandby Time : 100 HoursPower Supply : Built in Rechargable Li-ion BatteryDimension : 25x20x11mmNet Weight : 8.5gWhat's in The Box : Bluetooth Headset , User Manual , AC Adapter
Specifications 1.metal handsfree for Iphone,samsung mobile phones 2.accept OEM products 3.fast delivery 1.Plug Diameter: 3.5mm.2.5mmD800,KG800,K7502.Length: PVC 1.30 m 3.Speaker impedance: 32Ω4.Sensitivity: 100db5.the frequency response: 20hz-20 khz 6.Speaker diameter: 6μ,diameter10mm 7.chamber material: metal alloy chamber material made by the environmental protection8.drive-by-wire earphone
Brand Name: Tonsion/OEM Model Number: BT-30 Style: Neckband Communication: Wireless Connectors: Wireless Bluetooth type Use: Mobile phone, PC, portable media player, laptop etc. Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Payment term: T/T, 30% deposit; the balance before delivery. MOQ: 1000 pcs Delivery date: 30 days after the Docs and Logo confirmed. Price term: FOB Shenzhen Color: Black, white Earmuff: Comfortable artificial protein leather earmuff Packaging & Delivery Packaging Detail: Packing: Paper box Packing details: CTN size: 77*48*53.5cm; Qty/CTN: 40pcs Delivery Detail: 30 days Specifications 2013 Wireless Bluetooth Headphone with FM and TF/SD card slot 1. Wireless bluetooth headset 2. With FM/ SD,TF card 3. Neckband 2013 Wireless Bluetooth Headphone with FM and TF/SD card slot Model BT-30 features: Specification:Wireless frequency: 2.404-2.479GHz, ISM BAND Operating Voltage and current: 30mA 3.7V.( 3.7v 30mA lithium ion batter