Feature: 1. WIDE COMPATIBILITY: Wireless microphone system has a wide range of intelligent compatibility, suitable for most of the sound equipment, convenient plug and play. 2. INTELLIGENT NOISE REDUCTION: Wireless microphone system built in DSP intelligent noise reduction chip, anti interference anti whistling, high resolution vocals. 3. U BAND DESIGN: Wireless dynamic microphone adopts U band design, supporting multiple simultaneous use, no crosstalk, strong anti interference. 4. SUPERIOR SOUND QUALITY: UHF wireless microphone adopts moving coil microphone core, clear and full vocals, hifi sound quality. 5. WIDE APPLICATION: Wireless microphone system is suitable for karaoke, online live broadcast, outdoor singing and other scenes. Specification: Item Type: Wireless Microphone System Material: Zinc Alloy Microphone Parameters: Frequency Range: 610.50~669.50MHz Number of Channels: 30 Each for a and B Channels (Conservative Value) ID Code Changes Randomly Each Time It Is Paired, Within the Frequency Range Set by the Manufacturer Oscillation Mode: DSP Chip Frequency Lock Frequency Stability: ±10ppm RF Power: 10dBm Sound Frequency Response: 40~18000Hz Distortion: ≤ 0.5% Battery: Two AA Batteries (Not Included) Receiver Parameters: Frequency Range: 610.50~669.50MHz Number of Channels: A, B Channel Each 30 (Guard Value) Each Time the Pairing, ID Code Randomly Change, In the Frequency Range Set by the Manufacturer. Oscillation Mode: DSP Chip Frequency Lock Rate Stability: ±10ppm Receiving Sensitivity: -95~-71dBm Sound Frequency Response: 40~18000Hz Distortion Rate: ≤0.5% SNR: ≥90dB Sound Output: 350mv(Maximum) Battery Type: Lithium Battery Battery Capacity: 1200mAh (Included). Package List: 1 x Microphone1 x Receiver 1 x Instruction Manual1 x Anti Slip Ring1 x 6.35mm to 3.5mm Adapter1 x Charging Cable