S17 Mini Portable Tour Guide Teaching Loudspeaker with Screen Display(Cool Black)

1. Material: rubber paint, ABS, electronic components2. Function: teaching, tour guide, conference, training3. Built-in battery: 2200mAh lithium battery4. Charging time: 3 hours5. Use time: 20 hours6. Standby time: 72 hours7. Using head-mounted acoustic microphone, ergonomic design, comfortable to wear8. Using 3-inch speakers, the volume is larger and the transmission range is wider9. Support U disk/TF card playback10. The length of the belt can be adjusted freely11. Dimensions: 9.4 x 8.4 x 2.8 cm12. Weight: about 230 gramsPacking list:-Speaker x 1-Headset Microphone x 1-Belt x 1-Data cable x 1