Sansui i50 Lightweight Mini Wireless V4.1 Bluetooth Headsets,HD Sound One Side/Ear Headphones/Earbuds,with Mic Hands-free for Car Driver Safe Driving,Noise Cancelling,for & Android Cell Phones(Black) 1.Featuring latest Bluetooth V4.1 and CSR 4.1 chip set,via DSP Noise Cancelling technology , the Sansui i50 headphones ensure high-fidelity stereo music and crystal clear speech.Outstanding Bluetooth connection range of up to 33 feet for convenient wireless freedom. 2.Build-in microphone,supports wireless hands free calling,help you to drive safer while talking on the phone.Multi-point Connection technology,support Connect to 2 Bluetooth enabled devices at the same time and free switch. 3.Ergonomically designed, compact and lightweight,Comfortably fits either ear a super soft gel ear tip, comes with 180 Degree Flip-boom hook for left or right ear.Ideal for car driver, trucker driver,saving driving,business trip. 4.Built in rechargeable Li-ion battery,up to 7-8 hours continuous talking time,250 hours standby time,battery life display on iPhone.3-level sound volume,the sound level is 3-level preset,press once to lower or higher the volume. 5.Compatible with most Bluetooth-enabled Smart phones Compatible with Apple iPhone 6/5s/5c/5, iPhone 4s/4, Samsung Galaxy S5/S4/S3, LG, PC Laptop, and Other Bluetooth Devices.