1. Material: ABS, metal, sponge, electronic components 2. Bluetooth version: 5.0 3. Signal to noise ratio: 75dB 4. Frequency response range: 100Hz-10KHz 5. Speaker power: 3W 6. Channel: 2.1 7. Built-in battery: 1200mAh lithium battery 8. Ergonomically designed metal handle, comfortable arc, delicate fit palm 9. Using professional DSP digital chip, intelligent noise reduction, stereo surround 10. Colorful rhythm flashing light design, more atmosphere when singing 11. Metal mark, high sensitivity radio 12. High-density sound insulation sponge, reduce anti-whistling and current sound 13. Simple operation panel, easy to operate 14. Dimensions: 9 x 25.5 cm