E11 1 to 2 UHF Wireless Dynamic Handheld Microphone(Black)

1. Frequency Range: 500-697MHz 2. Vibration Mode: Chip Frequency Lock-in 3. Frequency Stability: -/+10ppm 4. RF Power: 10dBm 5. Audio Frequency Response: 40-18000Hz 6. Distortion Rate: Approx. 0.5% 7. Battery Specification: 3.7V/18650/1500mAh Lithium Battery 8. Receiver Sensitivity: -95 to -71dB 9. Signal-to-Noise Ratio: Approx. 90dB 10. Audio Output: 300mV Package Contents: Receiver x1, Microphone x1, Lithium Battery x1, Charging Cable x1, Anti-slip Ring x2, Windproof Cover x2, Adapter x1, Instruction Manual x1, Color Box x1