Specifications:

Model: PM138

Bluetooth Version: 5.4

Communication Range: 10m (open environments)

Battery Capacity: Earbuds 48mAh/0.185Wh, Charging Case 600mAh/2.22Wh

Input: 5V 1A

Output: 3.8-5V 240mA (120mA per port)

Frequency Response Range: 20Hz-20KHz

Wireless Frequency Band: 2400MHz-2483.5MHz

Charging Port: Type-C

Cable: USB to Type-C cable (0.3m, Black)