[ATTRIBUTES] - Hign-concerned Chemical: None - Material: Plastic - Battery Capacity[mAh]: 180 - Hign-concerned Chemical: None - Material: Plastic - Battery Capacity[mAh]: 180 - Battery life up to[hours]: 5 - Voice assistant built-in: No - Maximum wireless range[m]: <10m - NFC Technology: No - Sound Isolating: No - Category: Earphones & Headphones - Charging Method: Charging case - Package List: Charging case,USB Type-C Adapter - With Microphone: Yes - Is wireless: Yes - Support APP: No - Waterproof: No - Plug Type: None - Function: for Video Game,for Hunting & Shooting,for Powersports,HiFi Headphone,Sport,For Outdoor - Volume Control: Yes - Control Button: Yes - Vocalism Principle: Dynamic - Wireless Type: Bluetooth - Communication: WireLess - Style: Ows ear hook headphones - Certification: CE,FCC,RoHS - Origin: TW(Origin) - Brand Name: Acer - Acer Model: Ohr550 - Support Memory Card: No