Description A wireless handheld microphone system for karaoke, parties, DJs, business meetings, lectures or other outdoor and indoor activities Using 500MHz to 980MHz UHF frequency band, strong anti-interference ability A/D and D/A are used for 24Bit/48KHz high sound quality Use ID + frequency code to encrypt data to frequency, which can improve the stability of the connection With automatic mute and anti-vibration chip to avoid impact and switching noise The extremely high receiving sensitivity and excellent sound quality make the voice or singing voice clearer The wireless transmission distance is about 30 to 50 meters. Multiple devices (up to 16 sets) can be used at the same time without interference or frequency hopping Specification: System frequency response: 500-980MHz Channel number: 10 per match (conservative value), the ID code changes randomly, within the frequency range set by the manufacturer Oscillator: DSP frequency locked Frequency stability: 10ppm Distortion: 0.5% Receiver sensitivity: -95 to 71dBm Sound frequency: 40-18000Hz Signal to noise ratio: 90 db Audio output: 1/4 300mV unbalanced output Power supply: Built-in 500mAh rechargeable battery Receiver size: 93 * 31 * 20mm / 3.7 * 1.2 * 0.8in Receiver weight: 49g/1.7oz Transmitter RF power: 10 dbm Sound frequency: 75-18000Hz Power supply: 2 AA batteries (not included) Transmitter size: 23 * 4cm / 9.1 * 1.6in Transmitter weight: 203g/7.2oz (without battery) Package included: 1 x UHF Wireless Handheld Microphone 1 x Receiver 1 x 3.5mm Adapter 1 x USB Cable 1 x English User Manual