Say Goodbye to Wire, Wire microphone becomes wireless microphone, Freedom from wire contraints , no need for excessive wires. UHF high frequency emission - Equipped with a high-performance mitter chip, up to 48kHz sampling rate, dynamic range SNR 110db, accurately restore every detail of the sound, enjoy the dynamic music. 560-590MHZ,16 channels adjustable, Clear sound quality Long-lasting battery - Built-in 1500mah high-capacity battery, using to 8-12 hoursic. Fast Charging - Multiple charging types TYPE-C port charging Wide Range of Compatibility: Emitters: 1. Wired microphone 2. 48V microphone 3. musical instruments Refraction: 1. Sound card 2. power amplifier 3. mixing console 4. soundboxes 5. Equipment with microphone jacks This product adopts high integrated chip design, ID code matching authentication Frequency range:560.000-590.000MHz Adjustable channel:16 frequency adjustable points Channel interval:0.5-2.5MHz Modulation mode:Digital modulation Frequency stability:±3PPM Frequency response:40Hz-20KHz Working range:50-80M Operating voltage:Built-in 3.7V, 1500mAh lithium battery Colour:Black Material:Plastic+Metal Package Contents: 1 * Audio Microphone mitter 1 * Audio Microphone Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.