Features:
Military three-proof design: the outer part of the sound is wrapped with silica gel, and the fuselage is sealed. It can be waterproof, drop-proof and dustproof.
Function: TF card playback Bluetooth playback mobile power flashlight hands-free calling
Structure: waterproof silicone case, strong flashlight, subwoofer diaphragm
parameter:
Signal to noise ratio: ≥8db
Operating Voltage: 3.7V
Frequency response: 20Hz-20KHz
battery capacity: 4000mah