Upgraded Noise Reduction Chip: This wireless lavalier microphone features a newly upgraded noise reduction chip that actively filters out unwanted background noise, ensuring your recordings are clear and professional 20 Meters Transmission: With a stable signal transmission distance of up to 20 meters, this microphone allows for freedom of movement without losing connection or audio clarity. The reliable transmission ensures no frequency drops Compact and Portable Design: This wireless lavalier microphone is small and lightweight, allows it to be discreetly clipped onto your clothing, providing hands-free operation Enhanced Battery Life: Equipped with a 70mAh battery, this microphone offers up to 6 hours of continuous use on a single charge. The efficient battery performance ensures you stay connected for longer periods without interruptions Wide Compatibility: It is suitable for a wide range of applications, including vlogging, podcasting, teaching, and more Specifications: Frequency range: 2.4KHz Signal-to-noise ratio: 64db Working Time: 6h Battery: 70mAh Charging Time: 1h-1.5h Transmission distance: 20m