2.4GHz wireless transmission technology, convenient to use Ideal for video content creation, news interviews, and more Delivers superior broadcast quality sound Ultra-compact clip-on transmitter and dual-channel receiver Features easy-to-operate OLED display Real-time headphone monitoring function Working range up to 100m Transmitter with high-quality built-in microphone Comes with a lavalier microphone Specification: TX transmitter: Transmission method: 2.4GHz ISM band Signal modulation: GMSK Operating distance: up to 100 meters (barrier-free) RF output power: Polar mode: omnidirectional Frequency response: 35Hz-18KHz Maximum sound pressure level: 120dB SPL (built-in microphone) / 110dB SPL (lavalier microphone) Sensitivity: -39dB (built-in microphone) / -39dB (lavalier microphone) Signal-to-noise ratio:>84 dB Power supply method: built-in lithium battery/USB-C DC 5V Built-in battery nominal voltage/capacity: 3.7V/400mAh Built-in battery life: about 7 hours Antenna: PIFA antenna Audio input source: 3.5mm TRS microphone/line input, or built-in microphone Weight: about 32g Dimensions: 62.1x31.6x16.5mm Working temperature: -10℃ ~ 50℃ Storage temperature: -20℃ ~ 55℃ RX receiver: Transmission method: 2.4GHz digital frequency band Signal modulation: GMSK Operating distance: up to 100 meters (barrier-free) Audio output port: 3.5mm headphone jack/3.5mm TRS output hole Audio output level: -60dBV to -20dBV Power supply method: built-in lithium battery power supply/USB-C DC 5V/charging box contact charging Built-in battery nominal voltage/capacity: 3.7V/400mAh Built-in battery life: about 7 hours Antenna: PIFA antenna Weight: about 32g Dimensions: 62.1x31.6x16.5mm Working temperature: -10℃ ~ 50℃ Storage temperature: -20℃ ~ 55℃