Features:
1.Input power: 5V 1000MA
2.Maximum output: 15W
3.Battery capacity: 4000mAh rechargeable 18650 battery
4.Bluetooths Version: 2.1
5.Signal to Noise: ≥87dB
6.Distortion: ≤10%
7.Frequency response: 100HZ-18KHZ
8.Loud Speaker: 52MM 4Ω 15W
9. FM 87.5/108 transmitting distance: about 20 meters
10.Effective Bluetooths connection distance: 10 meters
11.Charging time:4-5hrs
12.Play time:3-10 hrs
13.Size: L280*W62*H62mm