1、Adopt wireless connection, very suitable for people who don't like to be restricted by wire. 2、The microphone devices have clear and loud sound quality, and the sound is clearly amplified without any static or hum. 3、Perfect for karaoke, weddings, public speaking, duet and any other occasion where you need to beautifully amplify your sound. 4、Suitable for small bars and bars, mobile disco,karaoke as well as home use and professional singers on stage. 5、Made of high-quality material, exquisite workmanship, durable in use. Item Type: Wireless microphone Product Name: Dual microphone UHF professional handheld wireless microphone Comprehensive Indicator: Frequency Stability: ≤ ±10ppm Modulation Method: FM Audio Response: 40-16000Hz Dynamic Range: >105dB (A weighting) Comprehensive Distortion: ≤0.5% (@1KHz) Audio Processing Method: Dynamic compression and expansion technology Working Temperature: 0℃ to +50℃ Receiver: Oscillation Mode: Quartz crystal oscillation Audio Output Level: 0-3mV Audio Output Impedance: 600Ω Spurious Image and Harmonic Suppression: ≥85dB Working Power Supply: AC12V-15V/200mA Microphone: Oscillation Mode: Quartz crystal oscillation Frequency Stability: ≤ ±10ppm Maximum Modulation: ±50KHz Maximum Output Power: 30mW Harmonic Radiation: <-55dBc Battery: 2 AA batteries x2 (not included) 2 x Microphone 1 x Receiver 2 x Anti-Rolling Ring 1 x Power Supply Adapter 1 x Audio Cable 1 x Manual 2 x Holder