Loud Speaker Voice Amplifier Speaker Bluetooth With Speaker Microphone School Teacher Microphone Portable Speaker=

✅Description: Small size and long battery life, up to 20 hours of use The knob controls the volume, which is very convenient for most users. Suitable for: teaching/guide/headset microphone/conference/training/listening to songs etc. .... Support USB disk and TF card to play music

✅Specification: Product Name:Multi-function amplifier Material: rubber spray paint + ABS plastic Size:9.2*8.4*2.8cm Usage time:20 hours Weight:200g(with lithium battery) Available colors: black/white/rose gold Input Signal:Microphone Charging time:3 hours Battery capacity:2200 mAh 18650 battery Function:Teaching/guide/headset microphone/meeting/training/listening to songs etc. ....

✅Packing list: 1*amplifier 1*Earphone 1*Strap 1*English manual 1*Charging cable