1. Mini Size microphone, easy to carry, 2. With wide frequency response and high-definition sound resolution, 3. Small size and light weight. Sensitivity: -43±1DB Pickup : unidirectional Output impedance: Less than 2.2KΩ Working voltage: 1.5V Output connection: standard 3.5 headphone plug output Applicable models: for Action camera size:Cable length is about 10cm Material:metal colour:Black Package Contents: 1 x Microphone Only the above package content, other products are not included. Note: Light 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.