Features: brand new and high quality Small Enough: Wear it for a day without getting tired, light and in-ear design, no weight-bearing feeling. Function: used for daily office work, voice control, music support, portable. Active Noise Cancellation: Isolate the sound and listen to it, using a dedicated noise reduction chip, through receiving and analyzing the additional noise, the opposite signal is generated in the earphone to cancel it. Shocking Sound Quality Experience: Feel the shocking sound quality experience, can analyze the audio excellently, and present the original sound. 5 Colors to Choose: There are 5 colors of black, blue, purple, red, silver, yellow color for you to choose. Specifications: Volume Control: Yes Sensitivity: 102db Support Memory Card: None Model: Mp3 Mp4 Connection Subwoofer Headset Wireless Type: None Waterproof: None Communication: Wired Sounding Principle: Moving Coil With Microphone: Yes Control Button: Yes Resistance: 16ohm Style: In-ear Plug Type: Wire Type Frequency Response Range: 18-20hz Connector: Aux Connector: 3.5mm Material: Silicone + Metal Color: Blue, Purple, Red, Silver, Yellow Wire Length: 1.2m/47.24inches Net Weight: 26g/0.06lbs Package Includes: 1PC Wired Headset note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.