Specifications 1.Software support:Windows 98/2000/98SE/ME/VISTA/XP 2.Operation range:100m 3.Convert non Bluetooth PC into Bluetooth enabled. Mini USB Bluetooth Adapter Product Description:1. Enjoy the music in the computer with your Bluetooth headphone.2. Edit mobiles profiles, such as contracts and ring tone in the computer.3. CDMA1X/GPRS/3Gs wireless net surfing 4. Data send and receive: computer to send to or receive OUTLOOK emails from Bluetooth mobiles.5.Synchronize transmission between PC and Bluetooth mobiles: back up mobiles Theme/Pictures/Sounds/Profiles in the computer.6.Add,delete and edit mobiles profiles in the computer.7.Bluetooth area network between computers.8.Wireless connection between computers and FAX or printer.9. Audio gateway.10.Anti-jamming, co-use with WLAN.11. Support Windows 98/ME/2000/XP/VISTA,Mac OSX or higher. Product Features:1.Interface: USB 2.0 ( 1.1 compatible )2.Frequency band: 2.4 GHz ISM3.Symbol
Specifications Bluetooth Bracelet for Iphone 4 & 4s * Caller ID & Watch display * Answer,Reject Phone call& BT function * Anti lost Funct. 2012 Fashionable Bluetooth Bracelet with Vibrating.Caller ID & time display for Iphone 4 & 4s Bluetooth bracelet Key features:1. Built in Speaker & Microphone (Update from the old model BW-13)
Type: professional diagnostic tool Voltage: /// Power: /// Certification: CE Place of Origin: Germany Brand Name: VAS Model Number: 5054 warranty one year: yes maintance all life: yes free update: yes Packaging & Delivery Packaging Detail: full paking Delivery Detail: one day Specifications VAS5054A for VW/Audi/Skoda/Seat V15 easy-to-use wireless access to the onboard vehicle system. VAS5054A for VW/Audi/Skoda/Seat V15With its compact design, its integrated diagnostic connector and its wireless connection via bluetooth, the VAS 5054A is the perfect choice for servicing, production and road tests in particular.Special features:Bluetooth and USB interface to the PCHousing with integrated diagnostic connecotrReliable and efficient handing of diagnostic protocols
Place of Origin: Guangdong China (Mainland) Brand Name: hkshanhai Model Number: BT5702 High quality BT5702: bluetooth module serial communication Bluetooth adapter: OEM price Packaging & Delivery Packaging Detail: Exquisite packaging Delivery Detail: 2-3days Specifications High quality bluetooth module serial 1:High quality . 2:OEM price . 3:In stock . High quality BT5702 UART serial bluetooth module serial Bluetooth adapter Product features and characteristics This product is currently on the market the most simple and easy-to-use a serial Bluetooth adapter can be connected directly responsible for the serial communication microcontroller TX and RX pin, the traditional UART serial communication transformation for wireless serial communication. The goods through the product embedded Bluetooth the SPP protocol stack software, wired serial communication data into virtual Bluetooth serial communication data, and further connected to other devices with Bluetooth communication functio
Place of Origin: Guangdong China (Mainland) Brand Name: TIZE Model Number: TZ-BT02P Bluetooth adapter Item name: Bluetooth handsfree adapter Bluetooth protocol: Bluetooth Ver.3.0 Power standards: Class 2 Communication distance: 10m Charging time:: about 2 hours Dimension:: 62*28*13MM Packaging & Delivery Packaging Detail: Each packing in color gift box, or do as cutomer design. Delivery Detail: 12-15 working days after confirm the payment. Specifications Bluetooth adapter simple and generous appearance. Adopt bluetooth V3.0 technology Automatically connect Easy to be used. New portable stereo Bluetooth adapter TZ-BT02P Product feature1. Designed for changing the ordinary audio (headphones) into the Bluetooth stereo (headphones), simple and generous appearance. 2. Adopt bluetooth V3.0 technology 3. Automatically connect function when power on. The adapter will search last connected device automatically when power on. If the device is within the searching range, it will
Specifications 7"800X480 capacitive touch screen Double camera option 2800mAH / 3.7V lipo battery Android 4.0 usb bluetooth adapter tablet 7 inch A13 usb bluetooth adapter for android tablet pc Q88 DDR III 512M/4GB hdmi 7"800X480 capacitive screen Double camera option 2800mAH / 3.7V lipo battery Android 4.0/4.1 usb bluetooth adapter tablet Highlight:*7 inch 5 Point Capacitive Screen *AllWinner A13 1-1.2GHz *Android 4.0. *RAM 512M ROM 4GB *0.3MP Front Webcam Wifi HDMI (optional) *800x480Pixels SpecificationModelA13Operation SystemAndroid 4.0Screen7" Capacitive Screen 5 point touchResolution800x480pixelsCPUAllWinner A13 1GHzGPUMali400RAM512MB DDR3ROM4GBWebcam0.3MP Front WebcamWirelessWifi 802.11b/g/n3GSupporting External 3G ModemG-sensorSupportBluetoothNoHDMINoGPSNoPowerBattery2800 mAh Rechargeable Li-ion BatteryWorking Time2-4hoursPower DeviceAC Adapter Input 100/240VDevice SpecificationColorBlack or WhiteDimensions194x117x12mmNet
Specifications Mobile music receiving from laptop, mobile phone, MP3-player via Bluetooth A2DP. Transmit the music in perfect sound to Aux-In. The new blueLino® Bluetooth Stereo Adapter adds a Bluetooth interface to your sound system, along with a whole host of other interesting functions.The blueLino® Bluetooth Stereo Adapter can be used as an external adapter, connected to any free audio input available on your HiFi system Active loudspeakers You play the music as normal on your mobile phone, PDA, CD or MP3 player, or PC / laptop and the signal is transferred via blueLino® without any loss in quality. You can then listen to the music on the reproduction equipment of your choice, your stereo system for instance, in exquisite sound quality.Bluetooth 2.0 ; Range up to 30m CE, e1, Bluetooth permissions Compact design, simple connection over LINE in/AUX at sound system Mini USB connector for updates Multi-function key with indicator Power supply includedLI-ION-AKKUPACK includ
Place of Origin: Guangdong China (Mainland) Brand Name: QS Model Number: QS-US03 Type:USB Bluetooth Adapter: Rate:3Mbps Color:blue,black: Interface:USB 2.0 Packaging & Delivery Packaging Detail: 1.Blister packing 2.According to customers' requirements. Delivery Detail: 3-5 working days after payment ,or depend on the order quantity Specifications Description USB 2.0 Bluetooth USB Dongle Dongle with Antenna Wireless PC usb Adapter Rate: 3mbps Operation Range: 0-100m SpecificationsBluetooth specification V 2.0 & V 1.2 Compliant. I/O Interface: USB V2.0 compliance. Operation Range: 100m (Bluetooth class 1 )Built-in antennaFrenquency Band: 2.4Ghz unlicensed ISM bandMaximum Data Rate: 3MBLED status indicatorSupporting profiles: Networking, Mobile Phones, Dial-up, Fax, LAN access , and Headset. Operation system: Windows 98, 98SE, ME, 2000, XP, VISTA and Windows 7. Size: 6*2.5*1.2 cmWeight:28g
Place of Origin: Guangdong China (Mainland) Brand Name: Sunhokey Model Number: YK-0353 Packaging & Delivery Packaging Detail: pp bag Delivery Detail: Within 3 days Specifications HC-06 Bluetooth Serial Modules Bluetooth Serial Port Adapter 1.High quality 2.Brand new 3.Fast delivery 4.Reasonable price HC-06 Bluetooth Serial Modules Bluetooth Serial Port Adapter Wireless Module RS232/TTL Descriptions: - CSR mainstream Bluetooth chip Bluetooth V2.0 protocol standards- the serial module operating voltage of 3.3V.- the baud rate is 1200,2400,4800,9600,19200,38400,57600,115200 user can set- the core module size: 28mm x 15 mm x 2.35mm.- 20 ~ 30MA, work current: pairing, paired 8MA- Sleep current: No Sleep- for the GPS navigation system, utility meter reading systems, industrial site, mining control system.- Can seamlessly connect with Bluetooth notebook computer,
Place of Origin: Guangdong China (Mainland) Brand Name: Gmate Model Number: Gmate Usage: Mobile Phone Color: black.white ,orange itouch +gmate: iphone iphone+gmate: dual sim phone ipad+gmate: ipad 3 g GSM Quad Band: 850/900/1800/1900Mhz Packaging & Delivery Packaging Detail: Regular color box packing Delivery Detail: 1-3 business days after payment Specifications Gmate bluetooth dual sim adapter for iphone ipad itouch 1. Enable an iPod Touch with phone features 2. use for Android phone What is Gmate? - Gmate is a tiny companion device where users can insert any GSM SIM card to add voice calls, SMS, and internet access to most Apple, IOS, and Android devices via bluetooth. Key Advantage: 1. Enable an iPod Touch with phone features 2. iPhone or Android phones can become dual SIM phones 3. iPad or Android Pads can be surf the net anytime, anywhere 4. Gmate is a small and hidden away so that you can use it discreetly Specification: GSM Quad Band: 850/900/1800/1900 MHz 1 Push-Push SI
Place of Origin: Guangdong China (Mainland) Brand Name: POWER-PF Model Number: ADS-U05S05 Usage: Mobile Phone Output Type: DC Connection: Plug In Rated Power: 5w Output Current: 0.8~1A Appearance Dimension: 65*47*26.5mm (L*W*H) Packing: 0.305Kg Packaging & Delivery Packaging Detail: Carton box Delivery Detail: 15 Working days Specifications 5W bluetooth adapter for android tablet 1.Universal AC input / Full range 2.CCC ROHS FCC CE 3.3 year warranty 5W bluetooth adapter for android tablet Features : ·Universal AC input / Full range &n
Specifications 1. The MHL S3 input and output of a (Type-A female). 2. Support charging MHL smartphone when playing video. 1. The MHL S3 input and output of a (Type-A female).2. Support charging MHL smartphone when playing video.3. Supports HDCP digital content protection.4. Support frequency range: 25MHz~75MHz5. Support HD resolution: 720p/60Hz,1080i/60Hz,1080p/24Hz/30Hz6. Support for 7.1-channel stereo. iphone5 Bluetooth Keyboard
Products Status: Stock Brand Name: OEM Model Number: CV105 Place of Origin: Guangdong China (Mainland) Color: Black Antenna: Integrated Dimensions: 22mm x 18mm x 7mm Packaging & Delivery Packaging Detail: Paper packaging Delivery Detail: 3-7days Specifications USB 2.0 Bluetooth Dongle Adapter EDR Wireless 1.Standard: Bluetooth V2.0 2.Frequency: 2.4~2.48 GHz 3.Symbol rate: 3Mbps USB 2.0 Bluetooth Dongle Adapter EDR Wireless Tiny (CV105) Features:1.The Bluetooth USB Dongle allows a computer with a USB port to communicate with others Bluetooth-enabled devices wirelessly2.Bluetooth V2.0 + EDR compliant, backward compatible with v1.2 and 1.13.USB interface fits both Desktop PCs and Notebooks4.Internet Access sharing5.Enables communication with Bluetooth Mobile Phones6.Bluetooth Profiles Supported: A2DP, Generic Access, Service Discovery Application, Serial Port, Dial-Up Network, Fax, File Transfer, LAN Access, Synchronization, Object Push, Generic O
Specifications APM2 BLUETOOTH module 1:best price . 2:in stock . 3:fast ship . APM2 BLUETOOTH ADAPTER BLUETOOTH TRANSFER TTL ADAPTER DESIGNED FOR AMP 2.0 Can be used to close connection Android phone GCS This Bluetooth transfer TTL adapterDesigned for apm2The default is 57600 baudID: CUAV APM2 Password: 2012 Please note thatThe price does not contain APM2 Shipment: 1. We will ship the goods within 1-3 work days after payment confirmation.2. We can ship goods via DHL/Fedex/UPS/TNT/EMS.Pls tell us which you prefer. We suggest DHL, because it is cheapest and fast in China.3. We are not responsible for any accidents, delays or other situations related with shipping company. But we will
Type: Other,USB Brand Name: Wishful/OEM Place of Origin: Guangdong China (Mainland) Color: Black Interface: USB Products Status: Stock Use: Computer Packaging & Delivery Packaging Detail: Blister card packing . Delivery Detail: 1-2 days for sample ,mass according your quantity. Specifications 1. Most miniest. 2. Plug and play 3. Wirelss connect to bluetooth devices . 4. Super competitive price. Advanced 4.0 Version CSR Wireless Bluetooth Adapter Features:Plug and play. Convert non Bluetooth PC into Bluetooth enabled.Wireless connect to Bluetooth devices such as mobile phones , PDA or PC , for data transfer, netw
Place of Origin: Guangdong China (Mainland) Brand Name: Livsim Model Number: MR01 Color: White Bluetooth version: Bluetooth V2.1 + EDR , Class 2 Effective range: 10 meters Packaging & Delivery Packaging Detail: Gift Box Delivery Detail: 3days Specifications Freely enjoy music from 30 pin Apple Speaker with bluetooth Devices 10M unlimited Bluetooth transmission High speed Bluetooth music receiver adpater for 30pin apple speaker Break model restriction Your 30pin Apple Acoustics will compatible with more devices,such as iPhone 5,iPad 4th,iPad mini,iPod touch 5th,iPod nano 7th etc. Unlimited Bluetooth transmission Bluetooth V2.0 technology,10 meters unlimited transmission, bread the limit of the wire, freely enjoy the music,easy to remotemusic , cheerful & happy Audio Bluetooth Adapter with Appie 30pin Audio application: Mobile,iPad,Note,other bluetooth devices Support APPLE devices as follows:&
Brand Name: APEXEL Model Number: ADP-918 Place of Origin: Guangdong China (Mainland) Special Feature: Wireless,Portable,Mini Color: black and white Packaging & Delivery Packaging Detail: 1pc/color blister box,108 pcs/ Carton, G.W : 3.700 kgs Carton Size : 29.0*25.0*28.0 cm Delivery Detail: According to your quantity Specifications 1.Complies with Bluetooth 2.0,Support A2DP V 1.2 2.Bluetooth Music Receiver Audio Adaptor for Home Stere Speaker a2dp 30 pin bluetooth receiver Adapter for Apple dock speaker
Products Status: Stock Brand Name: PCI Model Number: BT-Micro4 Place of Origin: China (Mainland) Specifications BT-Micro4 is the smallest and lightest Bluetooth 4.0 + EDR/LE (Low Energy Features) adapter with the latest standard. BT-Micro4 is Bluetooth Standard 4.0 compliant + EDR/LE which improves power consumption and compliant with bluetooth verison 3.0 and 2.1BT-Micro4 installation is as easy as a plug-in. And the software included provides a friendly users interface. It allows an operating range of up to 10 meters.
Place of Origin: Guangdong China (Mainland) Brand Name: DL-LINK Model Number: TS-BT35A002 Color: Black,white Packaging & Delivery Packaging Detail: PET box Delivery Detail: 15 days Specifications 1.3.5mm bluetooth audio receiver 2.Make normal speaker to bluetooth speaker 3.CE ROHS FCC BQB certificate. Quick Details Brand Name: DL-LINKModel Number TS-BT35A002 Use:Home Theater, Portable Audio Player, Mobile PhoneSpecial Feature:Wireless, Portable, MiniPlace of Origin: Guangdong, China (Mainland)Color:White, Black or do as customer requestTransmission Distance: Up to 10 metersMOQ:500pcsLogo imprint way: Silk printing warranty:1 yearCustom service: Package, logo, pairing name KeywordsBluetooth music receiver Feature 2 indicators flicker alternately when there is no connection. Blue light flicker slowly after successful connectionEasy to use by connecting audio input line to change the commo
Specifications jvc ks-bta200 bluetooth adapter with microphone Compatible with all wireless Bluetooth device Built in Li-Ion Rechargeable Bat Bluetooth Speaker Product Description Amazing, small and lightweight but perfectly formed and an essential accessory for any owner of an iPhone,Phone or Bluetooth device or any iPod or MP3 player, this ultra-mini but powerful rechargeable wireless 360 speaker is perfect for listening to your favorite music when you're on your travels or out with friends and family.Simply connect the Veho 360 bluetooth to your bluetooth
Specifications LM054 Bluetooth USB Adapters Bluetooth EDR USB AdapterShort Range Bluetooth USB adapterLM054 allows you to connect your PC to a bluetooth enabled device within a range of 20-40m. This adapter comes with IVT BlueSoleil Bluetooth Software. This means the user will get a comprehensive set of bluetooth profiles like HFP, A2DP, SPP, DUN, FAX etc to work with. Please note that LM054 will also work with other bluetooth software like Windows Bluetooth Stack, Widcomm, Toshiba Bluetooth Stack etc. LM054 is interoperable with our range of bluetooth adapters – LM048, LM058 and LM048SPA FEATURES Bluetooth v2.0 + EDR compliant backward compatible with Bluetooth v1.2/1.1 specificationUpto 40 m working distanceUpto 3 Mbps data rateTransfer document, pictures, ring tones to and from your mobile, laptop, PDA and PCStereo audio supported. VoIP calls over Bluetooth also supportedEliminates the need of cables between your PC and other bluetooth deviceSmall form factor (5 cm
Specifications gmate insert any GSM SIM card to add voice calls,SMS and Internet access for the most iOS/Android devices remotely via Bluetooth ES-IP002 Gmate Bluetooth Transformer Adapter Gmate is a tiny companion device that users can insert any GSM SIM card to add voice calls, SMS and Internet access for the most iOS/Android devices remotely via Bluetooth. With simply insert any GSM SIM card, enable an for apple Touch with phone features with the addition of voice calls, SMS and Internet access via Gmate's GPRS/EDGE. Make for iPhone or Android phones become dual SIM phones for iPad or Android Pads not only can surf the Internet anywhere, anytime, but also can make phone calls/SMS. Stylish and small to simply place Gmate in your pocket or bag. Powered by rechargeable battery (included) Apple device needs to be Jailbroken. Specs: Android Supported: iOS 4.0+(Must with installed Cydia) GSM Quad Band: 850/900/1800/1900 MHz SIM Card: 1 Push-Push SIM Card Slot USB Port: Micr
Specifications micro bluetooth receiver and transmitter 2 in 1 device apt-X support. plug n play, FCC, CE, BQB, Battery with UL, approval The Avantree Saturn is a 2 in 1 Bluetooth receiver and tran- smitter which incorporated the latest "aptX" deocoder for Bluetooth HD quality music.The Saturn is simple to use and enables any Bluetooth enabled music device to connect both Bluetooth and non-Bluetooth devices.It can be used to enable a phone to transmit music to a home stereo system or just as easily, to allow a CD player or other device to transmit music to a Bluetooth enabled speaker system or headphones. With a compact design and internal rechargeable battery with long play time,the Saturn is the ideal solution to link your music devices any time and any place you need it. * Outstanding Bluetooth stereo audio quality, full aptX codec is operational in both transmit and receive mode* Integrated Bluetooth music tranceive
Specifications 4 in 1 travel adapter with dual port usb 1.Customize ,Logo printing 2.new 100% 3.CE, ROHS, UL.. 4.Competitive price 4 in 1 travel adapter with dual port usb,4 in 1 travel adapter with dual port usb manufacturers&suppliers&exporters Factory Direct Sale=Superior Quality+Best Price Description of 4 in 1 travel charger: If you are an international traveler, this universal power adapter is a MUST HAVE. PROBLEM:You travel to a different country and now you can't plug in any of your devices because the wall outlets are different shape... SOLUTION: Plug your cord into this adapter and switch to the shape you need. That odd shape port has all the appropriate holes to fit USA plugs, European plugs, Australian plugs, UK plugs. All of the wall outlet plugs are hidden within the device (makes for great portabil
Specifications 1,OEM customer LOGO, 2,REAL CAPACITY. 3,BEST QUALITY. 4,FAST DELIVERY TIME Features GeneralProduct TypeMicro SDHC card/Memory tf cardStorage Capacity128MB-32GBWeight1.4g(0.05oz) ± 5%Dimensions11mm X 15mm X 1mm(0.43" x 0.59" x 0.039")CompatibilityNon-specificMemorySpeed Rating15MB/s-21MB/s for read5MB/s-8MB/s for writeSD Speed ClassC2/C4/C6/c10Supply Voltage3.3 VFeaturesWrite protection switchManufacturer WarrantyService & SupportLimited lifetime warranty ( Germany, Austria and France - 10 years )Service & Support DetailsLimited warranty -1yearsEnvironmental ParametersMin Operating Temperature-13 °FMax Operating Temperature185 °F Product DescriptionThe
Specifications New NFC Bluetooth adapter Bluetooth Music Receiver,Bluetooth 3.0 (Optional version: BT 4.0/NFC), NFC function,hands free(MIC) New NFC Bluetooth adapter | bluetooth adapter for android tablet | usb bluetooth adapter Bluetooth Music Receiver New Design, Private Mould1.Bluetooth 3.0 (Optional version: BT 4.0/NFC)2.Support profiles: A2DP V1.23.Powered by 5V DC4. Transmission distance: no less than 10 meters5. Dimension:D21mm * H15mm6. 1 indicators flicker quickly when there is no connection. Blue light flicker slowly after successful connection 7. 3 functional keys: 1 for MIC 1 is 3.5 mm audio output 1 for mini USB interface8. Built-in rechargeable lithium battery (250 mAh)9.Optional: NFC, Power adapter Product features:classic design, perfect shape.Simple to use, suitable for vehicle system.Transmission distance: more than 20 meters in open space without hindrance.Ultra-Clear and expedite Voice Chat.op
Specifications Wireless audio: Bluetooth Easily pair with your Bluetooth-enabled device Listen for up to ten hours What you need:FOR AUDIO PLAYBACK:Smartphones,tablets and other devices that support Bluetooth wireless audio profile[Advanced Audio Distribution Profile(A2DP)]or 3.5mm audio output,For smartphone and tablets.FOR PHONE CALLS:Phones that support Bluetooth Hands-Free Profile(HFP1.5)including iphone(all generations) Easily pair with your smartphone,tablet or other Bluetooth-enabled device.Enjoy great sound with enhanced bass.Listen for up to ten hours'straight on the rechargeable,internal battery .Play,share,compete and enjoy-all day long.Make crystal clear with the handy speakerphone with buil-in mic.It's great for phone calls or video chats -alone or with a group. Now,great sound goes where you do share a playlist at a picnic.Watch a movie with your sweetheart under the stars.Gather around and wish a happy birthda
Specifications 10.1" dual core tablet pc 1)IPS resolution:1280*800 2)Dual core RK3066 Cortex A9 3)Top 1 monthly output with bluetooth wifi RK3066 cortex A9 10.1" dual core tablet pc Product details: ModelDual Core M1009CPURK3066, 1.6GHz GPU: Mali400 graphics processorOperation SystemAndroid 4.1RAMDDR3 1GROM(Memory)8GB FLASH(4GB to 16GB optional)Shell MaterialMental+plasticScreen10.1 Inch Capacitive Screen 1280x800px Extend CardSupport TF card up to 32GB extendedCameraFront 0.3M/rear 2.0MGravity SensorYesMulti-TouchYes, 5 points touchFlashSupport Flash 11.1Android MarketYesBluetoothYes3GNot built in, support external 3G dongleEmail and BrowserYes, built inWIFIYes, 802.11b/g/n Wireless Connection Video720P/1080P/2160P H
Place of Origin: Guangdong China (Mainland) Brand Name: MVFAR Model Number: 930 Color: Black Packaging & Delivery Packaging Detail: standard packing Delivery Detail: depends on the quantity Specifications 1.Usb Bluetooth Dongle V2.0 2.Bluetooth Class 2, 10 meters 3.Carrier Frequency : 2.4026GHz-2.480GHz Specifications * Correspond with V2.0+EDR * Headset profile, Handsfree profile and Advanced Audio Distribution Profile (A2DP) * Frequency range: 2.4026GHz-2.480GHz &nbs
Brand Name: prosng Model Number: PS-BT100 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) Speaker diameter: 40mm impedance: 32Ohms color: multiple choices package: blister card packing Packaging & Delivery Packaging Detail: Blister card packaging or as client's request Delivery Detail: 15-30days after receive client's deposit Specifications 1.high quality 2.one stop service 3.good after-sale service 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… ;