Features: Comes with 2pcs microphone and 1pc receiver. Portable easy to carry. Wireless lavalier microphone clip design for hands-free use clear sound quality easily record high-quality audio. Receiver with Type-C interface plug and play easy to use. is built in 60mAh battery after fully charged it is about 6 hours working time. 360° omnidirectional pickup high density blowout sponge high sensitivity microphone. Built-in noise reduction chip it has strong anti-interference ability can effectively identify sound and can still record clearly in noisy environment. Built-in DSP Active Noise Reduction Technology: DSP chips can directly optimize signal from input to output. This reduces delay and noise of live-streaming resulting in excellent audio effects that are sufficient for direct use. Suitable for Android mobile phone/Android tablet/laptop with type-C Interface. If you need to connect your iOS phone you need an additional iOS Converter. (iOS Converter is included) Specification: Model: S11 Charging Case Size: 85x63x25mm (dual microphone version) 57x63x25mm single microphone version) Sensitivity: -26 dB Charge Case Battery capacity: 350mAh Microphone Battery: 60mA Frequency : New wireless transmission Directional type: full directional Charging time: about 2 hours Charging port: Type-c charging port Wireless version: 2.4GHz Receiving distance: 20 meters SNR: ≥90DB Frequency response : 20Hz-25KHz Package Size: 15x7x3cm/5.9x2.7x1.1in Package Weight: 200g/7oz Packing List: 1 x Charge Case 2 x Microphone 1 x Receiver 1 x Lighting Port Adapter 1 x User Manual