-  Bluetooth Version: Bluetooth 5.0

- Working Distance: =10M

- Output Power: 6W

- Speaker Specification: 2 x 52mm

- Frequency Range: 100Hz ~ 20KHz

- Signal to noise ratio: =80dB

- Battery Capacity: 1200 mAh 3.7V

- Play Time: 5 Hour

- Charging Time: 3 Hour

- Power Input: 5V 1A

- Product Size: 188 x 70 x 56 mm

- Product Weight: 450g

Bluetooth Speaker RB420