Signal To Noise Ratio: 90db
Frequency Response Rate: 40Hz-18KHZ
Maximum SPL: 115DB
Sensitivity: -40dB±2dB
Connection:  BT, SD card
Bluetooth version : 5.0
Speaker : 4Ω 5W*1
Battery  : 800mAh
Speaker Output: 5W
Receive Distance:  10m
Charging: Type-C