Bluetooth speaker
1.Frequency range :2.402-2 .480 GHz
2.Receive sensitivity: ≥-82dBm
3.Maximum Transmission: 4dBm (at the antenna land)
4.Transmission range: 10 meters
5.Power: 4Ω, 3w

Power bank
1.Capacity: 2000mAh,2200mAh,2500mAh,2600mAh
2.Battery type: Li-ion 18650 battery
3.Input: DC 5V/ 1A
4.Output : DC 5V/ 1A
5.With battery indicator