Product model: a16 Bluetooth headset
Bluetooth version: 5.1
Blue head distance: 10m
Headphone capacity: 50mah
Charging warehouse capacity: 2000mah
Talk time: 4-5 hours
Music playback: 4-5 hours
Speaker diameter: 6mm
Frequency range: 20hz-20khz
Headphone charging time: 1-2 hours
Bluetooth protocol: HFP/HSP/A2DP/AVRCP