Amplifys your voice and saves your throat. The sound is clear, crisp, no noise and no distortion. The max 10 watts sound can cover about 10000 sq.ft (1000 ㎡), loud enough to cover a big room.
Compact size (4.1 x 1.4 x 3.4 inches) and light weight (0.36 lb.). You can use the back clip to fix it on your belt or pocket. You can also use waistbelt to tie it around your waist or hang it on your neck.
Built in 1800 mAh rechargeable lithium battery. Continuously working time is up to 12 hours. You can use USB cable to charge this mini voice amplifier. Only needs 3-5 hours to fully charge it.