Feature: 1. Lavalier microphone has high-definition sound, band-type, designed to be fixed on clothes, easy to move, stable signal transmission, and bring you excellent sound effects. 2. 1 wireless microphone system, with strong and stable signal, using UHF frequency band, with 10 optional channels in the frequency range of 480‑940MHz, which can realize interference‑free operation. 3. Transmitter with LCD screen, can display battery status, channel, etc., with entrainment on the back, it can be directly installed on the body and other photograhy equipment. 4. It is suitable for computer/smartphone/DSLR camera to record, with a wide range of applications, suitable for interviews, teaching, recording, live broadcasting, TV broadcasting, etc. 5. Adopted LCD screen for the manufacturing,all the font and icon on the screen are crystal clear with broad viewing angle. Specification: Item Type: Lavalier Microphone System Receiver: Material: Plastic Color: Black Output Interface: USB+3.5mm Frequency Range: 480-940MHz (Max frequency range) Radio Frequency Transmit Bandwidth: 60HMZ Channel Number: 10 (Each 2.5L is a unit for one channel, and the maximum channel is 100 for setting) SNR: 96dB Receiving Sensitivity: -108dBm@12dB Sinad Frequency Response: 30Hz-18KHz Dynamic Range: 90dB Total Harmonic Distortion:0.05% Receiving Delay: 2.5ms Transmitter: Power: 2 x AA Battery(Not included) Microphone: Material: ABS Color: Black Transmitter Type: Capacitance Adapterization Mode: Cardioid Pickup Pattern Frequency Range: 480-940MHz Radio Frequency Transmit Bandwidth: 60HMZ Channel Number: 10 Transmition Power: 10 Megawatt Frequency Response: 30Hz-18KHz Dynamic Range: 90dB Harmonic Radiation: ＜-50dBc Weight: Approx. 259g/9.1oz. Package List: 1 x Microphone1 x Receiver1 x Connection Cable1 x Instruction1 x Transmitter