1. Crystal Clear Sound Quality：
Thanks to the best CSR Bluetooth chip and built-in DSP for audio processing, its sound is very clear and crisp without any noise or echo. Especially the treble and alto are very crystal clear. The bass is not a dull sound, but a pleasing sound similar to a metal drum after being processed by the DSP.

2. Best Call Earphones:
No echo no noises during the call. The clear sound is suitable for telephone chat or conference call, it is very convenient by press the power button to answer the call.

3. Long Playback Time:
8 hours playback time, and the power of the Bluetooth headphones will be displayed on the phone, a voice alarm will be prompted when the battery is low.

4. Easy to Use, Rich Functions:
Three buttons are used for turn on, turn off, play/pause, previous track, next track, volume + / -, answer call, voice dialing, SIRI (for apple) .

5. Widely Compatible with All Bluetooth Playback Devices:
The wireless earphones can be used for iphone, for samsung, for Huawei and honor or other smart phones. It also compatible with mp3 player, mp4, ps4, ipad nano, or laptop. It can be used for sports, jogging, work, conference calls, driving car, running, and so on.

6. Comfortable and Safety:
Ergonomically designed to fit the ear canal well, a wire neckband will keep the Bluetooth headset stay on your neck and never fall out, the bass from the amazing earbuds is to the standards and recommendable for your ear safety. You will not fatigue even after hours of listening.

7. Parameter:
Playback time: 8 hours;
Impedance: 32 OHM;
Connection distance: 10 meters;
Sensitivity: 96 db;
Frequency response range: 20-20 khz.

8. Follow Amazon's Return Policy:
Good product quality and best service, don't worry about the return if you are not satisfy with this item.