HOPESTAR A21 Portable Wireless Bluetooth Speaker Waterproof Loudspeaker Music Subwoofer Support TF Card FM

• Strong welding sound quality, super bass

• Automatically search for Bluetooth, receiving distance of 10m and below

• Support MP3, WMA format music files

• Support TF card, Bluetooth with call, file playback, FM

• Support external audio input function such as MP3/MP4/computer (AUX)

• Stereo sound quality, surging bass

• Support serial 1+1

• Support the combination of outdoor straps and silicone tote bags

• Waterproof cloth mesh technology, Support XP65 waterproof

Specification:

• Output power: 5w *2

• External magnetic speaker: 4? 5W*2

• Input sensitivity: 400mV

• Separation: ?90dB

• Signal to noise ratio: ?80dB

• Working voltage: DC 5V

• Battery type and capacity: 18650/ 2400mAh

• Battery working time: 4H

• Vibration mode: square diaphragm 40*33mm*2