2.4G Wireless Headset & Handheld 2 in 1 Mic Mic System Wireless Microphone System for Voice Amplifier Stage Speakers Teach

High-concerned chemical : None Built-in Battery : Yes Diaphragm : S-Mall Communication : WireLess Set Type : Single Microphone Transducer : Condenser Microphone Use : Computer Microphone Style : Handheld Microphone Brand Name : APWIKOGER Origin : Mainland China Certification : NONE