The Best Choice For You----i7 Earbuds We laid foundation on fashion,science and technology.Focusing on the design development and manufacturing of Bluetooth products. Notice: Left earbud will be main headset for call talking/hearing, Right earbud will mute. Why choose our wireless Bluetooth headphones? *INCREDIBLE SOUND QUALITY. Noise-canceling technology and a Bluetooth V4.1+EDR allow you to focus on the music with sound that's like a concert in your ears. *SINGLE MULTI-FUNCTION BUTTON. With a single multi-function button that initiates device pairing, plays and pauses music,and let you accept incoming calls with the built-in mic and receive helpful voice prompts! Specification: Wireless Version: V4.1 + EDR Support Agreement: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3 Frequency: 2.4GHz Impedance: 32 OHM Transmission: class2 Output power: 30mW Range: 33feet Frequency response: 20-20000Hz Talking Time: 3-4 hours Charging time about 1 hour (power indicator charging: red light; full power: red light off ,blue light on) Standby Time: 120 hours Battery: 60mAh rechargeable Li battery Operating voltage range: 3.0V-4.2V Mitou sensitivity: -42dB Product Size: Length 25MM* Width 15MM*High 35 MM Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger) Compatible phone: compatible with almost all the Android, Apple, Microsoft, Saipan system with Bluetooth mobile phone Package Content: 1*Bluetooth Headphones 1*USB Charging Cable 1*User Manual FAQ: Q: How to connect the device? A: First time connection, short press the power button until the led flash in blue and red alternately , then turn on your smartphone to search available device( HBQ-i7) , then you could listen to music and make calles.
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