1. Type-C & AUX 3.5mm interface 2. Dual digital array silicon microphone (360degree omnidirectional) 3. High-quality speakers; full-duplex communication 4. Contact the button (mute / sound addition and subtraction / mode) 5. Ring multi-color indicator light (red and blue) product name:microphone speaker Frequency response range: 20-20K(Hz) Sensitivity: -46+/-3dB Working voltage: USB 5V+/-5% Output impedance: less than 2.2kohm Maximum sound pressure ratio: 110dB Signal to noise ratio: greater than 75dB Echo cancellation; -70dB Pickup distance: within a radius of 5 meters Speaker rated power: 3W RMS Microphone sampling rate: 32kHz/16bit Audio format: AEC/AGC/NR/NLP/ALC Cable length: 1.5 meters System support: Win XP/7/8/10 Mac OS, Android colour:Black Material:ABS+metal size: 90 x 90 x 32.8mm Package Contents: 1 x microphone speaker 2 x Connecting line Only the above package content, other products are not included. Note: Light shooting 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.