Model No: b20
Speaker earbuds 2 in 1
Bluetooth Version: 5.1
Talking /Music Time: 6-7 Hours
Speaker Playback time: about 5-6 hours
Charging Time: 2 Hrs
Operating distance:10m
Frequency range: 20-20000Hz
Charging case Battery: 800mAh
Earbuds Battery: 30mAh
Charging voltage: 5V DC
Speaker Size : 5.98 *2.28 inch
Microphone: with a microphone
Touch control
Type-c port
Speaker Material: ABS

Model No: A60
Bluetooth 4.2
3W speaker
2.1 inch size
6 hours play time
3.5mm,AUX, USB port
Support memory card
Support FM radio
500 mAh speaker battery
Wooden painting cover

Battery capacity: 600mAh (built-in)
Endurance time: 6-8 hours
Charging time: 1–2 hours
Speaker: 3W
Frequency range: 2.4GHZ
Input sensitivity: 400mV
Wireless transmission distance: 10 meters
The degree of separation: 90dB
Frequency response: 70~20KHz (+-3dB)
Signal-to-noise ratio: 80dB
Playback formats: WAV, MP3, WMA
TF maximum support: 32G(not included)
Mode of operation: press key
Input voltage: DC 5V 2A

Model: B50
Bluetooth 5.0 Version
Frequency: 2.4GHz-2.8Ghz
Support Protocols: A2DP,HSP
Music play time: 7 hours
Standby time: 65 hours
Support TF cards
Charging time: 2.5 hours
Playtime: 4 hours
Speaker unit: dual speakers
Frequency range: 2.4GHz-2.48Ghz
Support protocol: A2DP, AVRCP, HSP, HFP
Frequency response range: 20hz-20khz
Material: ABS Plastic
Size: 232x176mm/9.13×6.92inch