Solution: AB
Speaker: 52-40 magnetic
Battery: 052025 300 mAh
Main material: ABS plastic
Color: black, blue, yellow and green
Functions: bluetooth, plug card, radio, AUX audio, hands-free
Distance: accessible distance of 10 meters
Voltage: DC5V
Number of speakers: 1
Bluetooth version :5.0
W: 4 Ω 3 w
Certification: ROHS