1. Speaker: 40mm. 2. Interface: 3.5 plug. 3. Microphone: omnidirectional microphone, Φ6.0*2.2mm. 4. Sizes: 188*180*90mm. Headphone cable length: 1.2m. 5. Weight: 184g. 6. Wire control: volume adjustment, microphone switch. 7. Equipped with 2-in-1 audio adapter cable, which can be used for desktop or laptop with dual audio ports.