Oreillettes sans fil Bluetooth K2, écouteurs mains libres, stéréo, ...

Oreillettes sans fil Bluetooth K2, écouteurs mains libres, stéréo, bande de cou, longue veille, jeu, musique, crochet K2 Bluetooth Headset CSR Chip Handsfree Earphone Earset Stereo Wireless Neckband Earphones Long Stand-by Gaming Musical EarhookBluetooth Vervsion:V4.1; Music time:18h; Talk time:16h; Charging time:2-3h; Standby time:.35daysChip: CSR chip,low power consumption and stable signal.Size:6.5cmx1.5cmx1.2cm; Transmission range:33ft(10meter); Battery: 300mAh Polymer lithium batteryDual Use: With external wired earphone, just ?????? it to the USB interface. Hang the Bluetooth earpiece, then use the slave earphones. Ergonomic design ??????s supremely comfort for all day use with or without earhookSuper Long Standby Time: Use 300mAh Polymer lithium battery make it has 35days standby time/18h talk time/16h music time, if do not use slave earphone, its standby time up to 70days,talk time/music time up to 36h/32h. Also it is quick charge, only need 2-3 hours.Pair with Any 2 Devices: Earphones can pair with 2 different Bluetooth devices simultaneously. It will double the options for answering calls enjoying music from 2 different devices at the same time.Hands Free: Handsfree and comfortable for music/ sport /gym /call /car driver. Never worry that the long, tangled wireless will get in your way when you are on the moveWireless and Windows: Latest Bluetooth 4.1 technology with up to 36 hours of continuous talking / music time, easy and fast pairing with smartphones and tablets