Souldio&trade; Bluetooth 4.0 Neckband Hands-free Headsets Headphones, Wireless Stereo Bluetooth Earphones Earbuds with APTX , Noise Reduction , Echo Cancellation , Voice Guidance , Sweat-proof for iPhone 6 6 plus 5 5s 4 4s , Samsung Galaxy S5 S4 Note 3 4 and Other Smart Phones (Black) CSR bluetooth 4.0: perfect for on-the-go usage, roam away from your connected device (without walls/doors) and still keep the connection. And when you've got your mobile device with you, you can leave within 10 meters Lightweight memory flex neckband design with magnetic earphone holders allows maximum freedom on the run. Perfect Bluetooth headset solution for different occasions Enhanced stereo sound quality with A2DP profile support, experience high quality music and calls at affordable price Automatically Play/Pause music on incoming calls plus audible pairing assistant keeps you alerted and stay connected Built-in microphone & vibrating call alert: make and take calls safely and easily, no matter what you're doing.