1. Material: Plastic
2. Support SD card capacity: 32GB
3. Application: teaching, training, tour guide, promotion
4. Support: SD card, U disk playback
5. Built-in battery: 1200mAh lithium battery
6. Continuous playback time: about 5 hours
7. Decibel: 90dB
8. Output power: 5W
9. Rated voltage range: DC 36V and below
10. Dimensions: 7.5x9.3x4 cm
11. Features: easy to carry, clear and loud sound, long battery life
12. Delivering headsets and nylon lanyards. Without battery