New Rixing NR-3000M Bluetooth 5.0 Portable Karaoke Wireless Bluetooth Speaker with Microphone & Shoulder Strap 1. Bluetooth speakers are suitable for fashion outdoors and home 2. Equipped with wired karaoke microphone with shoulder strap 3. The fuselage is made of car paint technology, and the texture is exquisite 4. Built-in 1500mAh full 18650 original battery 5. 10W high power, motherboard with boost 6. Perform Bluetooth playback test at 80% volume, playback time: 2-3 hours, charging time: 3-4 hours (playing time varies with volume and audio content) 7. Support USB, TF card, AUX audio playback, FM radio, cyclic charging, TWS function 8. Output power: 2*5W 9. Speaker: 2, external magnetic 4 ohm 5W, 57mm 10. Signal to noise ratio: greater than or equal to 80dB 11. Bluetooth standard: 5.0+EDR 12. Working distance: greater than or equal to 10 meters 13. Input voltage: less than or equal to DC5V (1A) 14. Size: 21.7x7.9x11.5cm 15. Weight: 674g