Features 1.Long Distance Transmission: Handheld wireless microphone adopts UHF technology, long distance wireless transmission, can arrive a transmission distance of 20m/65.6ft. 2.Wide Frequency Range: UHF handheld wireless microphone has a wide frequency range, less interference, and easily and perfectly displays your voice. 3.Match Usage, USB Power Supply: UHF wireless microphones can be used with 3.5mm and 6.35mm female interface devices; USB receiver power is provided by USB chargers, powbank, etc. 4.Superior Sound: UHF mic have precise and complete electronic circuit control, capable of capturing rich, mellow sound from the sound source directly in front of the microphone. 5.Wide Application: Wireless handheld microphone is suitable for recording studios, karaoke, radio, teacher guidance, live performances, conferences, churches, schools, auditoriums, parties, etc specificationItem Type: Wireless Handheld Microphone_x000D_ Material: ABS_x000D_ Mode: Cardioid Polarity Pickup Pattern_x000D_ Sensitivity: -50 + / -3dB (0dB Equals 1V Pa at 1KHz)_x000D_ THD: Less Than 0.7%_x000D_ SNR: Greater Than 100dB_x000D_ Delay Time: Less Than 5ms_x000D_ Frequency Response: 40Hz~15kHz_x000D_ Battery: AA Batteryx4 (Not Included)_x000D_ Operating Temperature: -10-50C PackageList 2 x Microphone 1 x Transmitter 1 x 6.35mm Connector 1 x 3.5mm SoundCable 1 x Instruction Manual