This wireless lavalier microphone system, equipped with a portable charging box, is suitable for YouTube recording, interviews, video blogs, meetings, live broadcasts, and more. With an 18-hour long battery life and a 2.4G lavalier microphone, your voice can reach further. Features: Plug and play design, no need for complicated cables and adapters, easy to operate. Equipped with a portable large-capacity charging box, 2 hours of fast charging can provide 21 hours of working time. With DSP active noise reduction function, it can effectively reduce environmental noise and provide clear sound quality. Real-time audio monitoring function, you can monitor the recording effect in real time by plugging in headphones. Multiple noise modes are available to adapt to different recording environments and needs. Specifications: Frequency range: 2400 - 2480 MHz Modulation: GFSK Transmitting power: 17 dB DSP noise reduction: -6 dB Power supply: 3.7V (lithium battery) Charging input: 5V=1A Charging cycle: 2 hours Working time: 7 hours Automatic shutdown time: 5-10 minutes Working temperature: 0°C to 55°C Storage temperature: -20°C to +55°C Size: 4.4*4.3*1.4cm (TX); 5.6*4.3*1.8cm (RX) Weight: 26g (TX); 40g (RX) Type C charging input: 5V=2A Wireless charging input: 5V=1A (electromagnetic induction) Power supply: 3.7V/3000mAh (built-in Li battery) Operating temperature: 0 °C to 55°C Storage temperature: -20°C to +55°C Size: 12.1*6.1*5.9cm / 4.8*5.6*3.9in Weight: 188g /6.7oz Package list: 1*Type-c Cable 1*Lightning cable 1*Charging cable 1*TRS cable 1*Lavalier microphone 1*Charging box 1*Receiver 1*Transmitter 1*Windscreen