1)Audio Frequency Response: 40Hz~18KHz
2)Output Power: 25dBm
3)S/N: ≥90dB
4)Speaker: 2xØ40mm
5)Operating Voltage: DC 3.7V
6)Operating Curret: 25mA
7)Carrier Frequency: 2.4GHz GFSK
8)Hold Time: 15 Hours
9)Music Playing: 12 Hours
10)Prot