Features: 1.Wireless hand-held microphone suit - Suitable for family KTV singing, parties, speeches, business meetings, etc.  High-quality microphone and high-quality filter system to solve the problem of howling.  2.Strong anti-interference ability for stable signal with receiving distance range of 30-100 meters.  3.Strong pickup and clear sound, no noise with constant frequency.  Thick metal mesh cover, anti-fall and anti-deformation, with built-in high-efficiency filter cotton to effectively filter wind noise.  4.Plug and play, easy to use.  5.Automatic connection and widely compatible with audio, amplifier, multimedia, mobile audio and other products.  6.A wide range of device support applications, as long as the device with the microphone interface can be connected.     Specification:  Type: Wireless Hand-held Microphone;  Silent control:lock noise;  Frequency offset:±11kHz;  Frequency response:80Hz-15kHz;  Frequency stability:±0.005%;  Signal to noise ratio:>60dB;  Distortion:0.5% (1kHz);  Number of channels:2 channels;  Sensitivity:-70dB M;  Use distance:50 meters in the open area;  Receiver power supply:DC 12V/320mA;  Transmitter power supply:AA battery ( NOT Included);  Transmit power:20 mW;  Frequency range:200MHz-270MHz;  Output mode:independent automatic selecting;     Transmitter:  Frequency stability:±0.005% Carrier output power:≤30mW Spurious emission suppression:>40dB Modulation method:VHF Maximum modulation:±75KHz Pickup mode:(capacitive) (LWM-6188/C)    Receiver:  Receive sensitivity:40dB;  Audio output impedance:600Ω;  Audio output level:0-0.5V;  Use power:AC220-240V 50/60Hz;  Power consumption:1W;     Note:  1. 3.5 audio cable connected to the antenna, the distance will be farther and more stable   2. Please note that the battery required are NOT included.     Package list:  1 * Microphones;  1 * 6.5mm to 3.5mm audio interface;  1 * Receiver;  1 * Charging Cable