1. Bluetooth version: 5.1 2. Charging interface: Type-C 3. Effective distance: about 10 meters 4. Battery capacity: 3.6V 2500mah 5. Large-caliber professional pickups, full and undistorted vocals 6. One key to eliminate the original song, easy to use 7. Sound card-level DSP chip noise reduction, no noise 8. Size: 96x96x226mmSpecification: Package Weight One Package Weight 0.89kgs / 1.96lb One Package Size 27cm * 13cm * 13cm / 10.63inch * 5.12inch * 5.12inch Qty per Carton 10 Carton Weight 9.70kgs / 21.38lb Carton Size 27cm * 39cm * 52cm / 10.63inch * 15.35inch * 20.47inch Loading Container 20GP: 487 cartons * 10 pcs = 4870 pcs40HQ: 1130 cartons * 10 pcs = 11300 pcs