Microphone Wireless Transmitter Kit 3.5mm TRS Lavalier 2.4G Condenser for DSLR Camera Cellphone Monitor

Features: -The body is small and easy to carry.  -Adopt 2.4G ISM global unlimited frequency band transmission.  -Widely compatible with computers, digital / SLR cameras, camcorders, voice recorders. tablets, and mobile phones.  -Both the receiver and the transmitter use a high-brightness OLED display.  -Built-in electret microphone, also supports external lavalier microphone, output volume can be adjusted.  -Automatic pairing at startup.  -Built-in lithium battery, charging with USB 5V.     Specification: Transmission frequency band: 2400MHz ~ 2483.5MHz;  Modulation method: frequency hopping / digital FSK (GFSK);  Transmit power: 10dBm;  Receiving sensitivity: -86dBm;  Antenna method: Built-in F type antenna;  Microphone pickup method: omnidirectional (built-in microphone and external lavalier);  Audio frequency response: 100Hz ~ 20KHz ± 3dB;  Dynamic range: 90dB (electrical performance);  Signal to noise ratio: 97dB (A weighted);  Maximum input voltage: 97dB SPL;  Display mode: OLED d