Description: This lavalier microphone is free of setting, plug play and self-pairing, which is easy and convenient to use. Using intelligent noise reduction, strong anti-noise and long distance stable signal reception, this lavalier microphone can bring you HiFi and clear recording experience. It is constructed of ABS material. The large-capacity battery supports super long endurance. The length of this product is 10.3cm, the width is 6.5cm and the height is 2.2cm. This lavalier microphone is suitable for meeting room, video shooting, interview, live show and so on. It supports speaker, amplifier, multi-media player and other devices with microphone interface. Item Name: Lavalier Microphone Material: ABS Mute Control: Lock Noise Deviation: +-11 KHZ Frequency Response: 80 HZ-15 KHZ Frequency Stability: +-0.005% Signal-to-noise Ratio: Larger Than 60dB Distortion: 0.5% (1kHz) Channel Number: Two Channels Sensitivity: -70dBM Use Distance: 50m in Open Area Receiver Power Supply: DC 12V/320mA Transmitter Power Supply: 2 x AA Batteries (Included) Receiver Power Supply: 1 x 18950 Battery (Included) Transmission Power: 20mW Frequency Range: 200MHz-270MHz Output Mode: Independent and Hybrid Automatic Selection Features: Mini, Lightweight, Sensitive Size Details: Transmitter: 10.3cm/4.06", W: 6.5cm/2.56", H: 2.2cm/0.87"(Approx.) Receiver: 12cm x 3.4cm x 3cm/4.72" x 1.34" x 1.18" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: A,B: 2 x Transmitters 1 x Receiver 2 x Microphones 1 x Antenna 1 x User Manual 4 x AA Batteries 1 x 18950 Battery or C,D: 1 x Transmitter 1 x Receiver 1 x Microphone 1 x Antenna 1 x Manual 2 x AA Batteries 1 x 18950 Battery This lavalier microphone is free of setting, plug play and self-pairing, which is easy and convenient to use. Using intelligent noise reduction, strong anti-noise and long distance stable signal reception, this lavalier microphone can bring you HiFi and clear recording experience. It is constructed of ABS material. The large-capacity battery supports super long endurance. The length of this product is 10.3cm, the width is 6.5cm and the height is 2.2cm. This lavalier microphone is suitable for meeting room, video shooting, interview, live show and so on. It supports speaker, amplifier, multi-media player and other devices with microphone interface.