Bluetooth: V5.0
Working distance:10M
SNR:≥90db
Battery: 3.7V 500mah
Normal volume playing time:2H
Speaker driver: ¢52mm*1
Power: 4Ω/5W *1
Frequency response:120HZ-20KHZ
Unitsize:91.8mm*91.9mm*50mm
Charging:5V/500MAH
Charging time: 3-4H