SPECIFICATIONSBrand Name: ZIXUANBuilt-in Battery: NoCommunication: WiredDiaphragm: S-MallHigh-concerned chemical: NoneOrigin: Mainland ChinaPackage: YesPolar Patterns: CardioidSet Type: Multi-Microphone KitsStyle: Hanging MicrophonesTransducer: Condenser MicrophoneUse: Stage Performance Wireless Microphone 1.Small and exquisite shape is very fashion. 2.Made by ABS material, which is strong, durable and economic. 3.Small and exquisite fixed iron collar clip is very stable and durable. 4.Lighter, soft connecting configuration can minimum the noise. 5.Many connectors, match for many kinds of launch system.   6. Professional: Industry-standard sound quality along with surprising durability make this mini Lavalier microphone ideal for just about any vocal sound and speech applications. Enjoy freedom of movement, discreet operation and exceptional performance fit for any occasion. The mini ear-hanging Lavalier microphone answers the demand for affordable, innovative and reliable Lavalier microphones 7. Lightweight, Comfortable & Durable: Professional vocal pickup condenser microphone. Has a 1.2 Meters cable for easy connection. Includes a Metal clip and a windscreen. Microphone features a cardioid pickup pattern. Sweat and Dust-Proof Made Primarily for Indoor and Outdoor professionals. Designed for Use on Stage, Houses of Worship, Lecturers and Other Applications Requiring Minimum Microphone Visibility with hand-free Operation. Specification: Trade name: hidden microphone Element: Electret Condenser Polar pattem: Omnidirectional Frequency Range: 20-20kHz SNR>63dB Output Impedance≤680Ω Signal to Noise Ratio: TBD Sensitivity-47dB ±2dB Cable Length: 3 Meters