Model: T9S
Transmission range: 50 meters
Function: battery display, voice control, call function, support music, NFC function, multi-point connection
Bluetooth protocol: 5.0 channels
Whether single binaural: bilateral stereo

Frequency range: 2402MHz-2480MHz
Transmission distance: 10m
Storage battery: 380 mah
Headphone battery: 40 mah
Talking time: 4 hours
Packing list: packing box, ear cap, charging cable, instruction manual