1. Microphone type: omnidirectional electret microphone2. Receiver plug: Type-C digital plug3. Microphone battery: 60mAh coin cell battery Working time: 3-4 hours4. Material: ABS,Size: microphone 63*25*26mm, receiver 45*27.5*8.1mm5. Weight: receiver 4.6g*1, microphone 7.2g*26. Equipped with Type-C to Lightning OTG adapter, it can be compatible with Lightning interface mobile phones, tablets and most Type-C interface mobile phones