Bluetooth 4.1 Headset Stereo Earphones Wireless Earset Earbuds Sweatproof Sports Running Headphones with Microphone For Andorid IOS Mobile Phones 3D music experience Smart Voice Control (Black) Bluetooth Profiles: CSR 4.1, Headset & Handsfree and A2DP/HFP/HSP/AVRCP.Provide Steady & Fast Connection Simple-to-use: control all functions of your music (volume, sound, song selection) and calls from your phone via voice control (yes/no Noise Reducing Technology . No matter you are in airport or party .always can be heard clear as need . Fast Charging : Charge 1 Minute . enjoy 1 hour + music Warranty : 180 days warranty provide by both amazon and smartsync official site