Earbud Sport Wireless Bluetooth Headset 4.1 Earbud

Sport Wireless Bluetooth High Quality Material Nice Design Small And Beautiful Brand name: Thormall Model number: D4 Function: for mobile phone, Sport, for routine office work, communal headphones, Supports music, hi-fi headphones the length of the pipe: None Support apt-x: No. Support Memory card: No. Waterproof: Yes Vocalism Principle: Dynamic wireless: yes time to market: 2017 Style: In-Ear Support APP: Yes frequency range: 8-22000hz plug type: Wireless Sensitivity: 123db