€80 with coupon for Relacart Mi1 Microphone Wireless Transmitter Kit 3.5mm TRS Lavalier 2.4G Condenser Microphone for DSLR Camera Cellphone Monitor from BANGGOOD

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:Brand model: Relacart Mi1Transmission frequency band: 2400MHz ~ 2483.5MHzModulation method: frequency hopping / digital FSK (GFSK)Transmit power: 10dBmReceiving sensitivity: -86dBmAntenna method: Built-in F type antennaMicrophone pickup method: omnidirectional (built-in microphone and external lavalier)Audio frequency response: 100Hz ~ 20KHz ± 3dBDynamic range: 90dB (electrical performance)Signal to noise ratio: 97dB (A weighted)Maximum input voltage: 97dB SPLDisplay mode: OLED display, showing battery power, current RF, AF statusPower requirements: built-in lithium battery, standard USB 5V charging via TYPE-C interfaceBattery life:> 7 hoursInput and output interface: 3.5mm TRSWorking temperature: -5 °C to + 50 °CDimensions: 50 mm * 44.5mm * 15mm