Tangle free with mic. Bluetooth. Premium sound from high performance speakers. Bluetooth Wireless Earbuds pairs with any Bluetooth device. In-line noise-isolating microphone & control button. In-Line Mic & Remote: Seamlessly switch between your playlist and phone calls with the built-in remote control. Flat Tangle-Free Cable: This flat durable design resists wire tangles and fraying. Secure Comfortable Fit: Our ear tips are soft, flexible and lightweight so you can listen to your music all day without any ear fatigue. They will lock in the sound and keep out distracting noises. Specifications: Version: Bluetooth V5.0+EDR; Speaker: 10mm SPK; Impedance: 322/15%; Sensitivity: 95db/3db; Frequency Response: 20Hz-20000Hz; Transmission Distance: 10m; Standby Time: 100-200 hours; Service Time: 3-5 hours; Charging Time: 2-3 hours; Battery: 70mAH. Build-In Mic for clear phone conversations. Volume up. Multifunction Button: Skip tracks; Play/pause music; Answer/hang up phone calls. Volume down. CE listed. FCC listed. RoHS. Please protect the environment. Do not abandon. Made is China.