Features Specification Features: 【4-channel Wireless Microphone】Equipped with one receiver and four transmitters, the DW40 supports up to four people recording at the same time, making multi-person recording more efficient. 【Broadcasting-level Sound Quality】DW40 has an ultra-high audio resolution of 48kHz/24bit, broadcasting-level sound quality, making the recorded audio more natural, clearer, and closer to the original sound. 【Universal for Camera/Phone/PC】The wireless microphone supports 2 audio output modes: digital output and analog output, widely compatible with all types of cameras, smartphones, computers. 【Real-time Monitoring and One-key Denoise】Real-time monitoring allows you to adjust the recording conditions at any time; Equipped with AI denoise function, the DW40 can filter out the environmental noise with one click to improve audio quality and bring a better listening experience. 【Working Range Up to 200M】Ultra-low audio delay of less than 20ms makes the recording more smooth and natural; it supports 200-meter transmission with the signal stable and uninterrupted in open area. 【Charging & Storing Case】The DW40 has a multi-functional storage case both for storing and charging. When used with the charging case, the total battery life can reach 10 hours, saying goodbye to battery anxiety. It also support one-click pairing in the case, making pairing more convenient. Specifications: Color: Black/ White(optional) Antenna: Ceramic Antenna Transmitting Power: 10dBm Receiving Sensitivity: -97dBm Microphone Sensitivity: -32dB+2dB Polar Pattern: Omnidirectional Frequency Response: 80Hz ~ 20kHz S/N: 70dB SPL (A-weighted,as per IEC651) Equivalent Noise: 24dB SPL(A-weighted,as per IEC651) Maximum SPL: 110dB SPL(at1% THD) Dynamic Range: 86dB SPL(A-weighted,as per IEC651) Sound Delay: <20ms USB Specification: 48kHz/24bit Battery: TX: Li-ion Battery 95mAh 3.8V, RX: Li-ion Battery 230mAh 3.7V, Charging Case: Li-ion Battery 1400mAh 3.7V Charging Time: TX: 2 Hours, RX: 2 Hours, Charging Case: 2 Hours, TX: 5 Hours Standby Time：RX: 5 Hours, Charging Case: 1 Time, Net Weight: TX: 12g, RX: 22g, Charging Case(with accessories): 129g Dimension: TX: 20.5X48.6X16mm, RX: 36.1X49X17.3mm, Charging Case: 136.5X63.2X31.8mm Working Temperature: 0℃ ~ 50℃ Storage Temperature: -20℃ ~60℃ Packing List: 4 * Transmitters 1 * Receiver 1 * Charging Case 1 * Charging/ Audio Output Cable 1 * 3.5mm TRS-TRS Audio Cable 1 * 3.5mm TRS-TRRS Audio Cable 4 * Wind Muff 4 * Magnetic Plate 1 * Carrying Pouch 1 * User Manual(English) Package List 4 * Transmitters 1 * Receiver 1 * Charging Case 1 * Charging/ Audio Output Cable 1 * 3.5mm TRS-TRS Audio Cable 1 * 3.5mm TRS-TRRS Audio Cable 4 * Wind Muff 4 * Magnetic Plate 1 * Carrying Pouch 1 * User Manual(English)