Mini Wired Voice Amplifier Recorder Audio Speaker For Teacher Speech Tour Guide Lecture

Label:Yes Function: Supports TF card, USB flash drive, screen display Battery specifications and capacity: 18650 1200 MAH Material: ABS Charging time: DC 5V 4-5H Output power: 8 W Frequency response: 60Hz-12KHz Function: Microphone, recording single loop Size: 9.2 x 8.4 x 2.8 cm/3.62 x 3.31 x 1.10 inch Packing:1PCs Due to the difference between different monitors,the picture may not reflect the actual color of the item Please allow 0.1-1cm differs due to manual measurement,thanks