Featured with large-capacity battery, the wireless microphone supports long standby time. This wireless microphone is ergonomic and lightweight, which is comfortable to grip. With the adoption of VHF noise-reduction technology, this wireless microphone supports stable and anti-interference transmission as well as high-fidelity and surround sound effect. It is constructed of ABS material. The length of the wireless microphone is 24cm and width is 5cm. This wireless microphone is suitable for many types of devices such as smart phone, laptop, sound card, DVD and so on. Item Name: Wireless Microphone Material: ABS Frequency Range: CHA/268.85 MHz CHA/266.85MHz Output Impedance: 600ohm+/-3% (1KHz) Sensitivity: -58 +/-3dB Distortion: Less Than 1% (1KHz) Frequency Response: 150Hz-12KHz Microphone Power: 2 x AA Batteries (Not Included) Receiver Battery: 1 x AA Battery (Not Included) Working Temperature: -10-50 Degree Celsius Features: Sensitive, Noise Cancelling, High Fidelity Size Details: 24cm x 5cm/9.45" x 1.97" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x Wireless Microphones 1 x Receiver 1 x User Manual