High-concerned chemical : None<br>Built-in Battery : Yes<br>Diaphragm : S-Mall<br>Communication : WireLess<br>Set Type : Single Microphone<br>Transducer : Condenser Microphone<br>Use : Computer Microphone<br>Style : Headset Microphone<br>Brand Name : DIXSG<br>Origin : Mainland China<br>Certification : CE<br>Support 3 : Real Time Radio Reception<br>Support 2 : Intelligent Noise Reduction<br>Support 1 : Charging While Using<br>Feature 1 : wireless microphone<br>Feature 3 : wireless lapel microphone for mobile<br>Feature 2 : wireless microphone for cell phone<br>Feature 5 : microphones karaoke<br>Bluetooth Protocol : 2.4GHz<br>Feature 4 : lavalier microphones wireless<br>Set Type : Multi-Microphone Kits<br>Feature 6 : microphones wireless<br>Transducer : Condenser Microphone<br>Package List : LinkedIn+Receiver+Charging Cable+Manual<br>Shell Process : PVC<br>Style : Lavalier Microphone<br>Polar Patterns : Omnidirectional<br>Communication : WireLess<br>Product Name : Lavalier Microphone<br>Interface : for Android&Apple<br>