1. Is this microphone wireless? Yes, it's a wireless microphone, You just need to plug the receiver in the device and then can use 2. Is this microphone heavy? No, this microphone only weighs 300-400g. is portable to clip it on your lapel. 3. How long can the microphone use? can be used for 5 hours. 4. What devices can this microphone support? can support mobile phone, computer, laptop, speaker, camera and so on. 5. Can this lapel mic reduce noise? Yes, this mic has the function ofnoise reduction and your voice can be heard clearer. Can this microphone support android? lf you need one used for Android system, choose type-c option. (Note: Type-c model) Color: Black Material: plastic Package Contents: 1 * Receiver 2 * Transmitters 1 * Charging compartment Only the above package content, other products are not included. Note: Light reflection 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.