1. Let the 3.5mm plug earphone have Bluetooth function.
2. Bluetooth 4.2 and supports Apt-X audio decoding technology high sound quality no delay in listening to songs.
3. CSR chip with Bluetooth strong compatibility good stability fast response clear music details can be distinguished.
4. Bring your own battery plug and play.
5. Charging/listening to songs is not delayed.
6. Built-in HD call microphone one-touch call.
7. Play the game without blocking your hand.
8. The volume can be adjusted and the music can be switched at will.
9. Compatible with National Standard (OMTP) / American Standard (CTIA) headphones.
10. The elastic back clip design makes it easy to carry.
11. Bluetooth is easy to connect in 3 easy steps.

Specification:
1. Output interface: 3.5mm audio.
2. Bluetooth version: 4.2.
3. Bluetooth protocol: AVRCP A2DP HFP HSP.
4. Signal to noise ratio: less than 90dB.
5. Microphone sensitivity: 40-44dB.
6. Frequency response: 20Hz-20kHz.
7. Transmission distance: 10 meters.
8. Battery capacity: 110mAh.
9. Charging time: 2 hours.
10. Listening to the song: 4-5 hours.