Chipset: JL7006F8
Working Distance:10m
Bluetooth Version: v5.3
Support: A2DP/AVRCP/HSP/HFP 
Battery Capacity: 3.7V/400 mAh
Play Time: 50 hours
Charging Time : 3 hours
Material：PU+ABS
Speaker: 40mm (32ohms)
MIC: 3pcs (-38db±3db)
Noise-Cancellation db:19db
Frequency Response: 20Hz-20KHz
SNR: >85db
Charging Input: 5V /1A

Chipset:JL
Bluetooth Version: V5.3+EDR 
Transmission Distance:10 m 
Playing Time:10 hours 
Standby Time: 300 hours 
Battery: 400 mAh rechargeable lithium battery
Charging Time: 3 hours
Speaker: Ø 40 mm
Sensitivity: 110 + 3dB S.P.L at 1KHZ
Impedance: 32 Ω
Frequency Response: 20hz-20khz
Rated Power: 15mW * 2
Music Playback Time: 10h                                                        

Chipset:JL
Bluetooth Version: V5.3+EDR 
Transmission Distance:10 m 
Playing Time:10 hours 
Standby Time: 300 hours 
Battery: 400 mAh rechargeable lithium battery
Charging Time: 3 hours
Speaker: Ø 40 mm
Sensitivity: 110 + 3dB S.P.L at 1KHZ
Impedance: 32 Ω
Frequency Response: 20hz-20khz
Rated Power: 15mW * 2
Music Playback Time: 10h                                                        

Chipset: JL 7006F4
Bluetooth Version: v5.3 + EDR 
Transmission Distance:10 m 
Paly Time: 50 hours 
Standby Time: 300 hours 
Battery: 400 mAh Rechargeable Lithium Battery
Charging Time: 3 hours
Speaker: Ø 40 mm
Sensitivity: 110 + 3dB S.P.L at 1KHZ
Impedance: 32 Ω
Frequency Response: 20hz-20khz
Rated Power: 15mW * 2
Music Playback Time: 50 hours
Play Time: 50 hours with 400mAh Battery Capacity