Saramonic UwMic9 (TX9+RX9), Wireless Lavalier Microphone System, Camera-mountable built-in wireless receiver and compact UwMic9 TX9 transmitter, 96 Selectable channels in 2 groups, Headphone monitoring, Easy-to-read LCD display, Over 100 m range in open terrain, Optional XLR transmitter for various applications, Transmitter: Frequency range: 514 - 596 MHz, Signal to Noise Ratio: 70 dB or more, Voice Delay: 12 ms, Audio input connector: TX9: 3.5 mm mini jack, Input level: -60 dBV (MIC input 0 dB attenuation), Distortion: 0.5% or less, Weight: 211 g (without batteries), Operation with 2 AA batteries, Dimensions: 171 x 64 x 30 mm, Receiver: Audio Output Connector: 3.5 mm mini jack, Audio Output Level: -60 dBV, Headphone output level: 30 mW (16Ohm), Receiver frequency: 514 - 596 MHz, Signal to Noise Ratio: 70 dB or more, Voice Delay: 12 ms, Frequency range: 40 to 18,000 Hz (+/- 3 dB), Weight: 219 g (without batteries), Operation with 2 AA batteries, Dimensions: 171 x 64 x 30 mm