PULUZ 1 To 2 Wireless Microphones with LED Display, 6.35mm Transmitter (Black) Features 1. Type: Handheld 2. Sound field force: Combined type 3. Directivity: Supercardioid 4. Energy conversion principle: Electric type 5. Companding technology to suppress noise and improve voice quality 6. Automatic frequency control (AFC) function 7. Support pilot technology to effectively improve the success rate of switching between different carrier frequencies 8. Support automatic mute control function, automatically mute when turning off the microphone 9. Support opening mic instruction function 10. Support charging indicator function, the red light will be on when charging, and the red light will go out when fully charged. 11. Support charging protection (overcharge, over-discharge, short-circuit protection) function 12. Charging interface: Type-C 13. High-sensitivity dynamic microphone core 14. Impedance: 550ohm Specifications 1. Material: ABS pipe body 2. Modulation method: Digital frequency modulation 3. Transmitter frequency range: 266.85MHz (A channel 763.4)268.65 (B channel 765.4) 4. Receiver battery: 18650 battery (battery not included in delivery) 5. Transmitter battery: 18650 battery (battery not included in delivery) 6. Receiver audio port: 6.35mm (with 6.35 to 3.5mm adapter) 7. Frequency bandwidth: 50MHz 9. MAX frequency deviation: 48KHz 10. Working distance: Greater than or equal to 30 meters 11. Distortion: Less than or equal to 0.5% 12. Signal-to-noise ratio (SN): Greater than or equal to 90dB 13. Frequency response: 50Hz-15KHz Package List 1. Receiver x 1 2. Transmitter x 2 3. Anti-slip Ring x 2 4. Charging Cable x 1 5. Adapter x 1 6. Windproof Cover x 2 (Battery not included)