New outdoor sports portable Bluetooth stereo cloth waterproof

Function:Card, waterproof, radio, dustproof, call function
Speaker unit:66mm
Type:Bluetooth speaker
Connection method:Bluetooth connection
Interface type£ºUSB
Frequency range£º100HZ-20KHZ
Output power£ºLess than 10W
Signal-to-noise ratio£º¡Ý75dB
Power supply method£ºBuilt-in lithium battery