Giới thiệu sản phẩm Voice Booster Amplifier Changer Mic Headset Microphone Megaphone Loudspeaker - intl
100% brand new, high quality.
It can make your sounds more louder.
It can work with MP3, MP4, cell phone, and computer via the audio cable
With headmount microphone.
Built-in rechargeable battery, long battery life, about 15-20 hours working time (full power state)
High quality, good frequency response.
Comes with a strap, can be worn at the waist.
Compact, portable size.
Suitable for teacher teaching, tour guide, public speaking, etc.Specifications:
Shell material: Plastic
Dimensions: 10.5*8.5*4.2cm (L*W*H)
Battery: Built-in 7.4V lithium battery
Power supply: Input AC 100V-240V 50/60Hz; Output DC 10V 350mA
Output power: Max. 20W
Frequency response: 100Hz-13KHz±3db
Charging time: about 3-4 hours
Working time: about 15-20 hours (full power state)
Use: Please put the microphone pointed at your month about 20-30mm.
If the green LED dims out gradually, it indicates that the battery is low.
When charging, the LED will flash in red and green.
If the LED turns green, it indicates that the battery is fully charged.