Feature:
1. Waterproof ,antiperspirant
2. Built-in microphone hands-free phone
3. Bluetooth 5.0, 2 ear have voice when calling.
4. High quality Bluetooth wireless stereo headset
5. mini size,comfortable and lightweight in-ear design
6. Open charging box Antomatic Boot-up Matching Function.
7. you can play any audio files of paired bluetooth device.
8. High definition,isolation and noise reduction, piston type
9. The rechargeable house can be supplied to 2 earbuds for 4 cycle recharge