Features: Portable design: The lightweight body weighs only 150 grams, making it easy to carry and not taking up space. Multipurpose output port: You can amplification microphone and music separately, or mix the two for output through three output port. The mixed output port can directly drive headphones, providing you with a powerful experience Amplification any sound: amplification the dynamic microphone by 75 times, the condenser microphone by 22 times, and the stereo music input by 5 times. Meet all your sound needs and enjoy better sound quality. Multiple scenario compatibility: Supports 3.5mm and 6.5mm port for dynamic microphone connection, compatibility with various devices such as mobile phones, cameras, and computers. Quality material: Aviation grade aluminum alloy shell, and can maintain stable performances even in harsh environment. Specifications: Material: Metal + Plastic Color: Black Size: approx. 10.7x4.9x2.6cm/4.21x1.92x1.02inch Model name: MA2S Microphone Preamp Power supply: DC5-12V Working current: approximately 25mA Dynamic microphone with 6.5 port amplification 75 times (37.50db), 3.5 port condenser microphone amplification 22 times (26.8db), stereo music input with 3.5 port amplification 5 times (14db) Usage scenario: Suitable for various occasions such as conference speeches, outdoor activity, teaching and training, with long time battery service life and portability Package Includes: 1 Piece Microphone Pickup Amplifier note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.