Specifications 1. Mini bluetooth speaker 2.Bluetooth 3.0version 3.Hi-Fi audio system 4.Newest CSR BC6 chip 5.CE&RoHS Multi Color Mini Bluetooth Speaker Model:FD-100 *size :73*73*80mm*Material: ABS Plastic Highlights Incredible sound quality from a small packageEasy wireless connection--works up to 30 feet awayWorks with all Bluetooth-enabled devices: smart phones, tablets, and most notebooksLithium-ion rechargeable battery provides up to 4 hours of wireless play--no need to buy batteriesSimple on/off switch on the bottom of the uni Function 1.Adopting brand Bluetooth solution, suitable for Bluetooth mobile phone or Bluetooth adapter, supporting A2DP, HSP, HFP Bluetooth protocol, with strong compatibility. 2.Data transmission of computer and TF card 3.MP3 Audio Decode 4.Bluetooth hand free5.Voice function Reporting incoming call number Specificati
Brand Name: OEM Model Number: ZB Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Channels: 2 (2.0), 2 (2.0) Special Feature: Wireless,Portable,Mini,Good quality,,Portable,Mini Place of Origin: Guangdong China (Mainland) Charging time: Max. 2 hours TF card: Support Speakers: Music Micro SD/TF Mini Speaker Porduct type: Mini angle speaker Connection: LINE Connection Appliaction: Portable Audio Player,Mobile Phone,Karaoke Function: Wireless Bluetooth speaker Packaging & Delivery Packaging Detail: Packaging structure: dedicated box.or oem 50pcs/ctn Delivery Detail: 16 days Specifications 1)CE/ROHS 2)2.1 Bluetooth Speaker with FM USB TF card 3)LINE connection 4)Support TF card 5)Phone hands free Wireless Speaker + Metal Case Bluetooth Speaker Output 3.7V Loud speaker 3W; 4Ω Signal and noise ratio ≥80dBAccessories U
Specifications 4-in-1 wireless mini bluetooth speaker 1,Portable,mini size. 2,Rechargeable polymer battery. 3,Led lighting. 4-in-1 wireless mini bluetooth speaker 1. Product Specifications: Bluetooth Specification:V2.1+EDR Frequency Working Range: 2.402GHz ~ 2.480GHz unlicensed ISM band Output Power: Class2, Maximum connection distance:10 meter Supported Profiles: HSP ,HFP 1.5 ,A2DP and AVRCP Profiles Standby time: 200 days Talking time: 40 hours Music play time: 2-10hours Charge time: 4 hours Flashlight last: 6 hours LED brightness: 100Lux LED expired hour: 50000hours Charging input voltage, electric current:DC5.0V 1000mAh Charging output voltage, electric current: DC5.0V 500mAh Battery Capacity:3.7V 2200mAh Taiwan patent: M 424721 2. Product package details: Product size with pvc box:210*150*50mm,Outer Carton size:530*320*242mm,NW:6.KGS/CTN,GW:7.5KGS/CTN, 20PCS/CTN.
Specifications private mould protable bluetooth speaker factory price, good quality OEM welcome ! 2013 new private mould HiFi bluetooth speaker With LCD display Support NFC , FM ,CLOCK,ALARM,and TIMER SWITH Description: Power:10W*2 RMS 10% THDSpeaker size: 3’x2With LCD displayFrequency Response: 20Hz-20KHz Support Bluetooth and MIC,With DSP audio process ,and EQ,DRC Support NFCSupport AUX IN(3.5MM),TF(APE/FLAC)Support FMSupport touch key (6pcs)Support CLOCK,ALARM,and TIMER SWITHWith adapter:DC13.5V/2AWith LI-ion 1100MA/7.4vWith Remote controlHIFI speaker units,clear acoustic quality,low distortionSubbass speaker units,acoustic quality more purity
Specifications Blue tooth speaker -15W super bass,TF/FM -Bluetooth 3.0 -MIC hands-free phone call -CE/FCC/ROHS Wireless bluetooth 3.0 bluetooth speaker blue tooth speaker Specifications Wireless bluetooth 3.0 bluetooth speaker blue tooth speaker Bluetooth 3.0+EDR Portable to take Support TF card, FM radioSupport OEM/ODM 15W good sound quality Wireless bluetooth 3.0 bluetooth speaker blue tooth speaker details: (1)Bluetooth: 3.0(2)Color: Blue,pink, black, sliver, green... (3)Material:Aluminum+Plastic Main specifications: 1.Support iphone, ipad to listen to music , play games. 2.Bluetooth standard V3.0, support A2DP V1.2, AVRCP,V1.4 profiles 3. Transmission distance :10m 4. Different colors, diverse choices 5. Frequency: 100Hz-20KHz 6. S/N ratio: 85 dB 7. Play time: up to 5 hours 8. Accessories: USB cable, Line-in cable, User manual. Product Specifications:NameBlue tooth speaker Model No.BL1235Bluetoo
Brand Name: Gsou or OEM Model Number: H100 Type: Passive Use: Home Theatre,Portable Audio Player,Mobile Phone,Stage Channels: 3 (2.1) Special Feature: Wireless Place of Origin: Guangdong China (Mainland) Specifications 1. 2.1Channel Bluetooth Speaker 2.Powerful woofer 3.Bluetooth 4.0 4.2*3W+5W woofer 5.Aux-in Jack The Gsou H100 2.1Channel wireless Bluetooth speaker is an affordable way to enjoy great-sounding tunes anywhere in your home or office. Pair it wirelessly with any compatible stereo Bluetooth-enabled device and you get good audio without the mess of wires. Features: 1,Bluetooth wireless audio without attaching a cord to your Bluetooth enabled stereo device 2. Dual 3" drivers and super bass for dynamic, powerful sound 3.Compact and sim
Brand Name: Dfan Model Number: DFSK520 Type: Active Use: Mobile Phone Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Color: red Condition: brand new Compatible: for mobile phone Stock: yes Packaging & Delivery Packaging Detail: retail package Delivery Detail: within 2 working days Specifications mini bluetooth speaker for mobile phone 1)mini design 2)high quality 3)good price 4)fast delivery mini bluetooth speaker for mobile phone Specifications: Bluetooth V2.1 + EDR(A2DP) Standard. Compatible with any bluetooth enabled device!For iPhone 4/4s/5, for Samsung, for iPad,for iPod, Android, Laptops, HTC phones, and anything else that is bluetooth enabled! Transfer distance :~10M (the distance depends on the bluetooth device and environment). Power:DC 5V Output :3W External lithium battery, MICRO USB interface, DV 5V Color: RedFeatures: o
Specifications 1.support U disk, mini SD card,TF card etc 2.FM frequency channel 3.rechargeable 4.enjoy your music with good sounds popular bluetooth speaker support bluetooth This item is a portable speaker with car model,fashion shape, support FM, U disk, mp3/mp4/mp5 to play your love music, easy to carry with. 1. Car model speaker, Portable Speaker.2. Compatible with iPod, iPhone, iPad, smartphones, MP3/MP4 players and other audio devices equipped with a 3.5 audio jack.3. USB flash drive function to connect PC by USB Cable.4. Expansion Bass, multi-color selectable.5. Mass storage Mobile Lithium battery.6. Micro SD Card Slot (Max: 16GB).7. USB, DC Cable Charge power.8. U disk usable to play music.9. Audio input, output.10. FM function.11. Double speakers, good sou
Specifications EW-QTSD112 bluetooth speaker OEM quality factory price EW-QTSD112 bluetooth speaker -Mini digital stereo portable speaker system specially designed for laptop, mobile photo, ipod, MP3, CD player, PDA, walkman ect. -this speaker is a practical and integrative digital active multimedia speaker,with mini style,elegant shape,ease of use and hunmanized design;use of advanced digital technology to improve the sound effect,appearing the sound quality of treble, median and bass is plentiful and harmonious, at the same time,there are four kinds of the player models, suitable for different purpose in difference place. -The Speaker with stereo 2.1CH,the best choice for ipod, CD, MP3 and so on. -The speaker has four patterns: AUX,USB,SD,FM -Can play the music with USB card or SD&MMC card directly. -Bluetooth function avalible
Brand Name: APEXEL Model Number: BS-1 Use: Mobile Phone,Karaoke Player,Computer,Outdoor Channels: 2 (2.0) Special Feature: Wireless,Mini Place of Origin: China (Mainland) shape: cute ball color: black,white Packaging & Delivery Packaging Detail: gift box packaging Delivery Detail: 7DAYS Specifications For iPhone/iPad/iPod Wireless mini bluetooth speaker 1.Mini size 2.Support all devices 3.Factory price 4.Welcome OEM For iPhone/iPad/iPod Wireless mini bluetooth speaker Specifications: 1. High quality Bluetooth 3W Mini Speaker2. Latest Bluetooth V3.0 support3. Battery level display in iPhone, iPad4. HD voice support (Wide Band speech)5. Support Multi-point(2 mobile phone connections)6. 5 hours music playback time7. One multi-function button easy operation8. Mini size with hand rope make it more portable9.Color:Black,White Pictures: &nbs
Brand Name: OEM Model Number: TR-SK-S8 Type: Active,Mini Amplifier Use: Portable Audio Player,Mobile Phone,Karaoke Player,Computer Channels: Big Speaker Special Feature: Wireless Place of Origin: Guangdong China (Mainland) Style: Bluetooth Color: Red,Black Certifications: BQB,CE,FCC,ROHS Packaging & Delivery Packaging Detail: Gift Box Delivery Detail: 3-15 Days Specifications Mini Bluetooth Speaker for cell phone Support A2DP,AVRCP,headset,handfree profile Range: 10meters Noise:>80db Net weight:80G Mini Bluetooth Speaker for cell phone Features: Applicable to many many digital audio players-MP3,MP4 Laptop,PC.Moblile phone.tablet,etc.patented expansile resonator increases the low frequency output . Extremely portable.Built-in rechargeable Li-ion battery protected by multiple circuits.ebnabling more than 4 hours of sound,Charging/audio input allows you to play your music while chargin your player or mobile phone. Specifications: 1)Support A2DP,AVR
Brand Name: OEM Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Place of Origin: Guangdong China (Mainland) Certificate: CE&ROHS Optional logo: welcome color: customer color welcome package: white box, gift box Packaging & Delivery Packaging Detail: white box,gift box Delivery Detail: 25days Specifications Universal portable mini hamburger bluetooth speaker 1.Mini Portable Hamburger Speaker 2.Convenient Easy To Carry Universal portable mini hamburger bluetooth speaker Universal portable mini hamburger bluetooth speaker PRODUCT FEATURES: 1.Compatible with most devices that may utilize headphones2.LED power indicator for power on and charging3.360-degree sound field intergrates a cone design with a custom-built speaker to project sound in all directions.4.With 1.4 subwoofer, the vacuum base offers deep and rich sound with HI-FI result5.New concept integrative portable mini speaker, with small bulk ca
Brand Name: Hanlob Model Number: HLB-003 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Channels:: 4 Speaker output:: 5w Signal-to-Noise Ratio:: ⥠95dB Battery capacity:: 5V±0.5V Use:: Portable Audio Player,Mobile Phone,Computer Special Feature:: Wireless,Portable,Mini Bluetooth transmission distance:: Bluetooth about 10 meters Frequency Response:: 280HZ-16KHZ colors:: black, red, blue, white Packaging & Delivery Packaging Detail: Color Box or by Requirement of clients Delivery Detail: 2-3 days after payment Specifications 1. portable, hanging portable design 2. BT audio transmission 3. variety of classic color for choice 4. Line connect 2013 high-end wireless bluetooth speaker with microphone Specifications 1.Power supplier:lithium battery:3.7-4 .2 V DC:5V ,600MA Li-ion battery
Specifications bluetooth speaker 2.1 Channel SOUNDBAR with line 2 black coloraatouch stereo bluetooth speaker Dedicated audio bluetooth speaker 1. CHRACTOR Detailed description of product functions: 1, Standard USB2.0 plot, could read SD/ SDHC / MS/ MMC card and USB Flash and play MP3 format music automatically and intelligently . bluetooth wireless speaker, stereo bluetooth speaker 2, FM radio function(Built-in FM antenna)... 3, Clock, alarm function. stereo bluetooth speaker 4,Built-in rechargeable lithium battery(Circuit with Charge Management)(USB charging time:4-5 hours, working time: up to 6 hours.) bluetooth wireless speaker 5, Infrared remote control function. stereo bluetooth speaker 6, AUX function. Standard 3.5mm audio output jack. 7. Several sound efforts for choice. 8. LED Display. 2. PARAMETER 1.Output Power: 4Ω/3W × 2 2.Frequency response:8
Specifications 1.SNR: more than 80db 2.Powered by li-ion battery/ USB cable 3.CE/ FCC/ RoHS 4.OEM/ ODM 5.1 year global warranty High quality mobile phone hand-free mini bluetooth speaker (BS05) * Compact and portable design, easy to carry * Hands-free calls make sure a saf
Specifications Portable speaker, bluetooth speaker, audio speaker 1.Bluetooth Version: 3.0 2.Material:Plastic+UV 3.Hands-free call 4.Cheap Portable speaker, bluetooth speaker, audio speaker With the continuous development and expansion of the digital portable audio market, the pursuit of the avant-garde, high-end consumers of stylish digital audio demand is growing. To this end,We launch a strong hit of the high-end market BS-03 portable audio products .As follows: 1.Products description: Bluetooth speaker(BS-03) Description*Portable mini bluetooth speakerFeatures*Bluetooth protocol with 2.4GHZ A2DP+AVRCP*Heavy bass design*AUX audio-in *Function Key:Four square keys *Hands-free phone call With MIC*Support TF Card *NO FM function*Material:Plastic+UVSpecification*RF range: With 10m FM range:87.5-108MHZ*Loudspeaker output: 3W(1KHz,THD 10%)*Signal-to-noise: ≥75dB *Distortion: ≤10% *Driver:4 ohm*DC-in 5V*Built-in Li-polymer batteryColours A
Brand Name: Hicbest Model Number: HRL13052706 Use: Portable Audio Player,Mobile Phone Channels: 3 (2.1) Special Feature: Wireless Place of Origin: Guangdong China (Mainland) color: 4colors optional payment: WU,Paypal,T/T, shipment: DHL,UPS,Fedex,EMS Range: 10 meters Charging time: approx. 3 hours Operating time: approx. 6 hours Frequency Range: 100HZ-20KHZ cable length: wireless Rated Power: 20MW Function: waterproof Packaging & Delivery Packaging Detail: with standard package Delivery Detail: as per your quantity,within 3days for the samples Specifications Mini Waterproof Wireless Bluetooth Speaker Handfree For iPad iPhone iPod Touch 1. High quality 2.Mini model and waterproof. Mini Waterproof Wireless Bluetooth Speaker Handfree For iPad iPhone iPod Touch Reminder:Activate the Bluetooth speaker's pairing mode by, when in power of mode, press and hold the on/off button for about 6 seconds until the red LED and blue LED are flashing alternatively, now the speaker is read for p
Specifications Opto electronic water spray speaker audio speaker bluetooth speaker 1. water spray speaker 2. Opto electronic 3. bluetooth Opto electronic water spray speaker audio speaker bluetooth speaker Detailed description : 1. The liquid using plant oil rather than water is more security non-conducting. 2. Brand new and good quality 3. Colorful light & Water built-in, funny dancing speaker, it is rather hot and fashion 4. Full rich sound 5. Concise appearance design,melody perfect match with water dance and LED lamp just is dazzle multicoloured 6. Dual track and double-horn. Feel the shock of the three-dimensional sense and sense of space 7. Compabible with all music players.[ MP3/4 ;Mobile Phone; Computer; Iphone;Ipad. etc..] 8. Stndard USB power plug, no battery power supply;high-quality of acrylic material extraordinary texture 9. Outward oppearance fashion; the use of simple; convenient, suitable for hom
Brand Name: mini bluetooth speaker Model Number: WS-701 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Computer,Outdoor Channels: 1 Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Speaker driver: stereo, 40MM, 4Ohm Speaker output: 5W*2 LF diaphragm dimension: 25*40 MM Frequency Response: 180Hz-20KHz Operating Interface: 2.4GHz-2.48GHz Bluetooth compliant: V3.0+EDR Material: Aluminum Housing size: 162.5*42.5*63 MM Weight: 270g(speaker only) Battery charging time: 3.5-4 hours Packaging & Delivery Packaging Detail: Gift box for mini bluetooth speaker. Delivery Detail: 1~3 work days for samples, 10~15 work days for bulk orders. Specifications mini bluetooth speaker: 1,SIRI function and support microphone 2,Excllent stereo sound 3,CE FCC RoHs BQB 4,private mode 2013 latest stereo wireless portable mini bluetooth speaker for mp3 iphone ipod ipad About us: We design, we produce, we manage, we sell directly to you, so we
Specifications bluetooth speaker 1:Support TF Card.USB drive.FM radio 2:External Battery&Built-in battery 3:CE&ROHS&FCC 4:365 days warranty mini wireless bluetooth speaker 1.Accord with bluetooth V2.1 +EDR(A2DP) 2. Transmission range:<10M3. USB charging voltage :DC 5V4. Output power:3W5. Built-in Power : Li-ion Battery 3.7V/450MA6. Battery Lifetime:4 hours &n
Model Number: CT-899-2 Special Feature: Portable,Mini Place of Origin: China (Mainland) Packaging & Delivery Packaging Detail: See descriptions Delivery Detail: 45-60 days Specifications 'Bluetooth 2.1 + EDR Speaker: 36mm Power Output: 2W Built in Lithium Battery 100mA Battery input DC5V 'Bluetooth 2.1 + EDR Speaker: 36mm Power Output: 2W Built in Lithium Battery 100mA Battery input DC5V Aux in function Optional: with USB charging cord and aux in plug optional:with full body water screen pattern &
Specifications bluetooth speaker,usb speaker,bluetooth usb speaker 1: Bluetooth player mobile music, call (pay attention to the short boot Bluetooth built in order to connect a Bluetooth) 2: TF card inserted U disk3: LINE IN and FM: resonance function (better on a flat surfacecolorful lights effect)
Specifications 1.Hot!!! 2013's Main Popular stereo Bluetooth speaker 2.USB port 3..Rechargeable lithium lon battery 4.Support hand free ca Mini stereo Bluetooth speaker Function & Feature: 1. Play MP3 format music from MP3/MP4/IPOD/Computer/USB/TF card and other device etc.2. With FM radio;3. Support USB/TF card up to 16GB;4. Support Bluetooth function;5. Rechargeable battery:BL-5C;6. Support line-in function;7. Support hand free calls, and echo. Technical parameters: Model Number:NS1115Compatibel with:iPhone,iPad, table pc, notebook etc( include all device with Bluetooth function)Dimension:60mm*H50mmLoud speaker45MM; 3ΩPower output:3WBluetooth: Bluetooth V2.0+EDRBluetooth profile:<10M( According to environment and mobile phone Bluetooth device, transmission range have some different)USB charge voltage: DC 5VBattery: Built in li-ion battery, 3.7V 400 mAhPlaytime:4-8 hoursColor:OEM &nb
Specifications audio Speakers for MP3 1.FM radio,TF card,TV Speaker 2.Can play the usb music directly 3.LED Screen can show time Wireless Bluetooth Speaker Mini Bluetooth Speaker New Mini Multi-function bluetooth speaker Sell Points: * Support: TF card,FM Radio, * LED Screen can show time, * Play music from USB/Micro SD card/MP3/phones/laptop directly * Can control LED light mini speaker Specifications: * Digital screen can display working state * Can connect with TV,cell phone,mp3/mp4/moblie phone/ipad/ ipod Iphone as speaker * It have changing colors LED* It have internal antenna * Big LED screen an show time, FM channel, charging* Colour available : Pink, Red. Green. Blue .Silver. black * Lithium battery and rechargerable. 350mAH&n
Brand Name: OEM Model Number: AT-B-301 Type: Active Use: Home Theatre,Portable Audio Player,Computer Channels: other Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) other: other Packaging & Delivery Packaging Detail: color box Delivery Detail: 5 days Specifications hot and popular!! Portable U-disk shape cute bluetooth speaker Main FeaturesPortable U-disk shape cute speakerWidely Compatible With bluetooth enabled Mobile phones/computers/transmitterBuilt-in 3.5mm stereo audio line plugAccompanied by Bluetooth transmitter, wirelessly play music from Video devicesFull-digital processing, no signal lose by USB transmissionHigh efficiency, high performancePackage Content1 x Mini Bluetooth Speaker1 x USB Cable1 x User ManualSpecificationPower Supply By USBBluetooth 2.+EDR,support A2DP V1.2Output Interface 3.5mm Audio Port Wireless Distance About 10M without obstaclesSound Output Rate44
Brand Name: Gini Model Number: BM6 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer Channels: 1 Special Feature: Wireless,Portable,Mini Place of Origin: Fujian China (Mainland) Waterproof Level: stereo Bluetooth Verison: V 2.1+EDR Operation Range: 8 meters Supportd Profiles: DSP, HSP, HFP Item Size: d38x92mm Playing time: 16 hrs Standby Time: 120 hrs Charging time: 3hrs Colour: customized Warranty: 12 months from the shipping date Packaging & Delivery Packaging Detail: 1 in each gift box Delivery Detail: 4 weeks for first order Specifications wireless sporting bluetooth speaker for bicycle -Waterproof IP54 -with soft rubber wrap -bluetooth speaker wireless sporting bluetooth speaker for bicycle &
Brand Name: HFD Model Number: HFD-S60 Place of Origin: China (Mainland) Style: Headset Microphone Use: Computer Microphone Communication: Wireless Packaging & Delivery Packaging Detail: Product Size:6.7*6.7*12cm 100pcs/ctns Ctn Size:57*28*56.5CM G.W:23.5KGS Delivery Detail: 2-3 days for sampes, 15-20 days for mass production Specifications Mini Portable Sucker Silicone Bluetooth Speaker for Iphone,Ipod,Mp3 player Mini Portable Sucker Silicone Bluetooth Speaker for Iphone,Ipod,Mp3 player Bluetooth wireless audio transmission,portable, hanging portable design,Can suck base speakers,Hands-free car bracket of bluetooth speakers &nb
Specifications 1.bluetooth speaker 2.match easily with iphone,ipad. 3.supported usb, mp3, sd card 4.voltage:DC 5V 5.size:112x29.3mm bluetooth speaker new design products for 2013 flying saucer shape colors wireless bluetooth speaker mini audio speaker wholesale Model: JS-102 Feature: Speaker type: wireless Bluetooth speaker Adjust method: touch sensitive button Functions: Bluetooth audio input,Bluetooth handsfree,MP3,Line in,SD card Power supply:DC 5V(USB), Built-in lithium battery 420mAh Rated power:2.2W Speaker unit: Dia.36mm S/N:>80db Frequency response:90Hz-20kHz Audio Connector: 3.5mm Impedance:4 Omega Playing times:4 hours Size:112x29.3mm Other charact:Match easily with iphone,ip
Brand Name: HY Model Number: BT-52A Type: Active Use: Portable Audio Player,Mobile Phone,Computer Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Output power: 1.5w + 1.5w = 3w Size: 207 * 24* 32mm Weight: 130g Charge: by mini USB port Charge time: 3.5H Working time: 5H Speciel function: Passive woofer technology Colour: Silver;white;black;red OEM: Acceptable Package: Gift color box Packaging & Delivery Packaging Detail: High quality plastic bags, foam boxes, cartons and wooden pallets are used to ensure that every package is firm and secure. Delivery Detail: 3-5 days Specifications super Hot Wireless bluetooth speaker for iphone With NFC Hands-free function Powerful battery super Hot Wireless bluetooth speaker for iphone 1.Specification Output power1.5w + 1.5w = 3wWeight130gSize207 * 24* 32mmChargeby mini USB portCharge time3.5HWorking time5H Compatible with the below devices: 2.Product fea
Specifications loud voice portable product, easy to take wireless convenient long life battery