Wireless MicrophoneOperating Voltage: 2 * AA battery for Mic (not include battery in Package) 1 * AA battery for receiver (not include battery in Package) Technical parameters: The range of frequency: 220MHZ to 270MHZ Frequency stability: 50 PPM (5 10 du degrees Celsius 35 degrees Celsius) Frequency response: 60hZ 13KHZ The receiver: Receiving sensitivity: better than 12 is a 40 db (S N=) Modulation mode: FM Working temperature: 10du degrees Celsius to 35 degrees

Comprehensive Compatibility

no software required

Charging port: Micro 5 pin USB charging interface

5mm stereo headphone plug

Material: TPE

Able to connect any 3

Monster DNA

Both the foot and the handle are also lined in white

PC interface: 3

hard to twine

Material: Synthetic Leather Compatible Brand: Universal

does not affect the line of sight