Karaoke Systems descriptions： We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Handheld Wireless Karaoke Microphone & Player - Echo Mixer System. Handheld Wireless Karaoke Microphone Karaoke Player Home Karaoke Echo Mixer System Features: 1. Imported Dynamic Mic Core: High Sensitive Sound Head with Strong Pickup Performance, High-fidelity, Can Reproduce the True Sound. 2. Microphones: The Microphone Head is Constructed of Full Metal Mesh, Which is Durable, Indeformable and Drop Resistant. Built-in Sponge to Effectively Filter Wind Sound and Noise. The ABS Plastic Body of the Microphone Compliments the Steel Mesh Grille Perfectly to Ensure Years of Reliable Use. 3. Long Wireless Reception Range: The Wireless Reception Range Reaches 50-100 Meters. It Frees Performers from the Bonds of Messy Cables and Helps Them to Move Unimpeded Without Fear of Tripping over Cables During Performance. 4. VHF Band Design, Digital Pilot, with Much Stronger Anti-interference Performance. 5. Multifunctional Wireless Microphone: Wireless Handheld Microphone with Receiver, Perfect for Karaoke, Meeting, Speech, Performance or Party. 6. A Great Solution to String Frequency, out of Frequency, Broken Sound, Distance Limitation and So On. Specifications: Overall System: Color: Black Mute Control: Lock Noise Frequency Offset: ± 11kHz Frequency Response: 80Hz-15kHz Frequency Stability: ± 0.005% Signal to Noise Ratio: > 60dB Distortion: 0.5% (1kHz) Number of Channels: Two Channels Sensitivity: -70dB M Operation Distance: 50-100 Meters (open Area) Receiver Power Supply: DC 12V / 320mA Transmit Power: 20mW Frequency Range: 200MHz-270MHz Output: Automatic Selection Between Independent and Hybrid Package Weight: 974g Wireless Microphone: Length: 27cm / 10.6in Diameter of Mic Head: 4.5cm / 1.8in (Max.); 3.5cm / 1.4in (Min.) Frequency Stability: ± 0.005% Carrier Output Power: 30mW Stray Radiation Suppression: > 40dB Modulation: VHF Maximum Modulation: ± 75KHz Pickup Method: Moving Coil) Pre-emphasis: 50S Power Supply: 9V Battery (NOT Included) Power Consumption: 40dB To Increase: 50S Audio Output Impedance: 600 Audio Output Level: 0-0.5V Power Supply: AC220-240V 50 / 60Hz Power Consumption: 1W Package List: 1 X Receiver 2 X Wireless Microphone 1 X Audio Cable 1 X Power Adapter 1 X User Manual . Products number : SOMONO103276