Features: 2.4G Wireless Microphone System: Adopts 2.4G global free frequency up to 100m effective transmission working can realize smooth recording without staccato. Broadcasting Quality Audio Recording: 48kHz/16bit audio recording intelligent denoise <20ms low latency RF technology and auto frequency adjustment can make your recording more fluent and more stable. On-board Recording with 8G Internal Memory: Built-in 8G memory card you never have to worry about drop outs or audio issues again. One button for starting or stopping recording easy to operate. Digital & Analog Output Modes: The microphone can identity interface of your device automatically compatible with 3.5mm and USB interface devices. Universal for cameras smartphones and computers. Recording File High-speed Transmission and Copy: Supports internal and external MIC input modes and the recording file can be transmitted via USB-C interface of the very convenient to use. Specifications: Brand: COMICA Model: BoomX-D PRO D1 Color: Black/ White(optional) -- (TX) Transmitting Power: +10dBm Receiving Sensitivity: -86dBm Antenna: PCB Antenna Polar Pattern: Omnidirectional Frequency Response: 80Hz ~ 20kHz Sound Delay: <20ms External Mic Input Interface: 3.5mm TRS --Receiver (RX) Transmitting Power: +10dBm Receiving Sensitivity: -86dBm Antenna: PCB Antenna Audio Output Amplitude: +0dB ~ +12dB Sound Delay: <20ms Audio Output Interface: 3.5mm TRS & USB-C Digital Output: 48kHz 16bits Monitor Interface: 3.5mm TRS/TRRS Battery: Built-in Li-ion Battery 330mAh 3.7V Recording Time: about 24 hours Item Weight: 29g/ 1oz Item Size: 3.9 * 2.2 * 5.5cm/ 1.5 * 0.9 * 2.2in Operating Temperature: 0℃ ~ 50℃ Packing List: 1 * (TX) 1 * Receiver(RX) 1 * External Microphone 1 * Wind Muff 1 * 3.5mm TRS-TRRS Audio Cable 2 * 3.5mm TRS-TRS Audio Cable 1 * 3-in-1 Charging/ Output Cable 1 * Reset Pin 1 * Carry Case 1 * User Manual(English)