Color: Yellow Frequency response: 2.4GHz Sound dielay: 15ms Signal to noise ratio: 64DBM Weight: Receiver*5.3g,Transmitter*7.3g,Charging Case*63.7g Responsiveness: -26DB Sampling rate: 20-20KHz Transmission distance: 20meters Accessibility Size: Receiver*25X8.5X435mm,Transmitter*19x16x45mm,Charging Case*85x29x62mm 1.Battery LifeProviding 12 hours of continuous working time when fully charged. Our lavalier microphone can be continuously charged for 6 times in the charging case, no need to worry about insufficient power,for outside Interview Video Podcast Vlog. 2.Noise ReductionWireless microphone adopts Cutting-edge noise reduction chip, Which can more effectively eliminate environmental noise and make the video sound clear.DSP intelligent noise reduction Filter out excessive noise ,New noise reduction technology improves sound quality by automatically filtering out unwanted background noise. 3.2.4G WirelessThe lavalier wireless microphone enables for signal, helps you get rid of messy wire and clearly recording or taking video at a further distance indoors or outdoors.2.4G Wireless Tech Instant Connection Auto Pairing ,True wireless , true freedomInstantly connected , always in sync. 4.Professional MicrophoneThis innovative wireless lapel microphone is easier to set up. No Adapter, Bluetooth or Application required. Just plug the receiver into your devices, turn on the mic and then they will pair automatically. 5.Lightweight Live Broadcast Mic.Store in Two Seconds - Weighing only 83.6 grams,this collar clip is pressure-free and more stable,ensuring it won't fall off and making it easier to carry.