Lenco Grid-7 - Manual (Page 8)

5. Technical data
Output power：
3WX2+5W
SNR： 57 dB
Frequency response： 100Hz~20KHz
Output impedance：
high pitch 4Ω；bass 3Ω
distortion： ≤1%
speaker： high pitch 3W/4Ω，bass 5W/3Ω
Battery capacity： 8000mAh/3.7V
Charge power voltage/electric current： DC5V 2A(DC in jack); DC5V 1.2A (Micro-USB)
Bluetooth distance: 10 meters (no obstacles)