【TRULY BLUETOOTH V5. 0】: Adopt the latest Bluetooth V5. 0 and CVC noise Canceling technology. Super long effective distance as long as 66 ft., four times longer than other Bluetooth 4. 2 headphones. Make you enjoy the great deep bass as much as possible. 【TRULY STEREO CALLS】: Compared with previous headphones, the F16 support stereo calls. The high sensitive microphones can achieve the truly stereo calls. Steady connection, easy and fast to connect and great compatibility. 【SIMPLE TO OPERATE AND COMFORTABLE TO WEAR】: The touch-control design makes the F16 easy and convenient to operate. Support play, pause, answer/hang up calls, redial, activate Siri and many other functions. Suitable for many kinds of scenes. Ergonomic design makes you never tired to wear. 【SUPER BATTERY LIFE】: Benefit from the progress of the Bluetooth technology, the power consumption can be as low as 8mAH. Double ears music playtime can be as long as 6Hrs and single ear can be 7. 5Hrs. Equipped with 400mAh charging case which can last 24Hrs.