One-Click Noise Reduction Algorithm Upgrade: AI noise reduction algorithm, combined with a noise reduction module, provides strong interference rejection, easily handling noisy environments and effectively identifying the original sound. 360 Omnidirectional High-Definition Sound Pickup: Highly sensitive microphone head with 360 sensitive sound pickup, reducing ambient interference and providing clearer sound. Extremely Long and Stable Transmission Distance: 30 meters of stable transmission, plug-and-play operation regardless of distance. Direct Connection without Sound Card: True wireless, untethered, automatically pairs upon power on. No additional operation required. Simply turn on and enjoy wireless freedom. 30-hour battery life with the charging case: The wireless charging case can store and charge the entire device, allowing pairing all day and night without worrying about battery life. Digital Audio/Non-plug Playback: A dedicated cable interface transmits digital audio signals, eliminating electrical noise for clearer reception. This allows for playback without plugging in your phone to check the sound quality. Ambient Soundtrack: In-depth research into acoustic principles has led to the development of an outdoor sound cavity structure using multiple layers of materials, including air film, and high-fidelity 48kHz, 24-bit sampling. Name: Lavalier Microphone Signal-to-Noise Ratio: 70dB Frequency Response: 20Hz-20kHz Rated Power: 5W Rated Voltage: 5V Microphone Head: Capacitive Battery Life: 3-6 hours (inclusive) Transmission Delay: 25ms Operating Frequency: 2.4G Wireless Connection Built-in Battery Capacity: 300mAh-500mAh (inclusive) Multi- Color: Black Material: plastic Package Contents: 1 * Microphone 1 * Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.