Chip version number: AC6936D
Bluetooth version: BT5.0
Bluetooth maximum transmission distance: 10 meters
Bluetooth band range: 2.402 ~ 2.480
Bluetooth transmission power: 4dBm
Bluetooth stable distance: 10
Headphone battery capacity: 30mAH
Battery compartment capacity: 200mAH
Battery type: polymer battery
Battery V number: 3.7V
Charging input V number: 5V ± 0.25
Headphone charging time: 1 hour
Charging bin charging time: 2 hours
Play time: 3-4 hours
Talk time: 3-4 hours
Charging cycle: 300 times
Number of LED lights: 4 Green LED
LED light color when charging: Red headphone
LED light color when low battery: no
LED light color when working: GreenRed
Speaker size: Φ = 6mm
Number of speakers: 2
Speaker impedance: 16Ω
Speaker sensitivity: 94±1.5dB
Waterproof rating: IPX5