Product information:

Bluetooth headset function: NFC function call
Function channel: 2.0
Bluetooth version: 5.0
Headphone category: real wireless headset
Waterproof performance: IPX5
Usage: In ear
Transmission radius: 10m
Single or double ear: double stereo
Transmission radius: 10m between left and right earphones
Connection mode: wireless connection
Dust proof performance: IP5X headset and playback device
Connection mode: Bluetooth connection