1. Wireless microphone makes you move freely and make energetic and active performances. 2. The rechargeable and portable receiver only needs to be charged for a long time. 3. Plug and play, cable-free, automatic frequency pairing, portable microphone with AA and 18650 battery. Rechargeable lithium battery receiver makes it portable (NOTE: AA batteries and 18650 batteries are not included) 4. The microphone can be connected to multiple audio systems including speakers, amplifiers, and wireless microphone systems. Wireless microphones give you the mobility and freedom of movement for stage performances, speeches, churches, weddings, and more. 5. Material: ABS 6. Signal to noise ratio: greater than or equal to 70db 7. FREQUENCY RESPONSE RANGE: 100HZ-20KHZ
