1. Imported ABS material, surface sprayed with matte oil; 2. High-quality environmentally-friendly TPE round wire, L = 1.2 M; 3. Microphone: equipped; 4. Drive: 10 mm, copper ring speaker, stereo. 5. Ordinary wire control: for iPhones, press two times to play the last song, and press three times to play the next song, pause, answer, hang up function; for other phones such as Samsung, Xiaomi: pause, play, answer;