Vender i7s wireless bluetooth headphones tws stereo headset sale al mejor precio

specification: -driver: 15mm -impedance: 32 ohms -bluetooth version: bluetooth v4.2 + edr -Use of bluetooth band: 2.4ghz -power level: class ii -Output power: 30mw -bluetooth distance: 10 meter barrier -Frequency response: 20-20000hz - working voltage range: 3.0v-4.2v - microphone sensitivity: -42db -With high quality a2dp / avrcp audio protocol and remote control protocol -Powerful noise disabling circuitry (active noise reduction) -switch between Chinese and English (boot does not connect bluetooth state, press the switch 2 times, hear the tone switch successfully) -Talk time is 2-3 hours. - music time about 1.5-2 hours - the passing time is 100 hours. ************************************************** *** characteristics: 1. listen to the correct song, support songs and call, 2. Remind call number, the last call again, all intelligent Chinese and English voice prompts, boot, pair, turn off the phone power will be low voice; 3. Power capacity will be displayed on your iphone, you can see the power situation at any time, don't worry about electricity, make your life worry-free; 4.One to two connections, can be connected to two mobile phones at the same time 5. bluetooth headset connected to the phone after shutdown, and then open the bluetooth headset will connect to the phone again automatically, more convenient; 6. Smart compatibility: support all bluetooth mobile phones, tablet, notebook, singing, qq music, movies, etc., universal all mobile phone specification: 1.driver: 15mm 2. impedance: 32 ohms 3. bluetooth version: bluetooth v4.2 + edr 4. bluetooth use band: 2.4ghz 5. power level: class ii 6. output power: 30mw 7. bluetooth distance: 10 meter barrier 8. frequency response: 20-20000hz 9. operating voltage range: 3.0v-4.2v 10. Microphone sensitivity: -42db 11.With high quality a2dp / avrcp stereo audio transmission and remote control protocol 12. powerful noise denotation circuit (active noise reduction) 13. switch between Chinese and English (boot does not connect bluetooth state, press the switch 2 times, hear the tone switch successfully) 13. talk time is 2-3 hours 14. music time about 1.5-2 hours 15. standby time is about 100 hours