Real copper ring speaker : 10mm
Impedance : 32ohm+-15%
Frequency response : 20Hz-20KHz
Wireless version : V5.3
Transmission frequency : 2.4GHZ-2.48GHZ
Support wireless, TF card to play music
Charging voltage : 5V
Charging time : about 3 hours
Talk time : about 120 hours
Music time : about 120 hours
Standby time : about 1 year
Battery capacity : 800mAh
