Awesome wireless earbuds with free switching of double ear piece into a single side makes you enjoy an pleasant experience during your journey.With its fashinable appearance and built-in prefessional music bluetooth chip with HIFI Stereo earphones， you can always enjoy HD quality stereo sound.  Features:  Enhanced audio and bass response.  Microphone mute.  Audible pairing assistance.  Auto reconnect.  Advanced multipoint.  Stereo music.  Support voice prompt.  Strong noise reduction.  Making and receiving calls.  Tracks forwarding & backwarding.  Support music play & pause.  Specifications:  Brand: Retro  Model: RO-11  Type: Wireless Stereo Headset  Material: ABS  Color: White， Black (Optional)  Version: CSR 4.0  Talk time: up to 20 hours  Music time: up to 15 hours  Stanby time: up to 20 days  Input: DC5V  Compatible with: iPhone 6，6 Plus，5S 5C 5 4S， iPods，Samsung Galaxy Note 3， Note 2， S6， S6 edge， S5，etc. Most Android Smart Phones and other Bluetooth-enabled tablets.  Product size: Approx.15 * 17.5cm / 5.9 * 6.9in (L * W)  Product weight: Approx.35g / 1.2oz  Package size: Approx.20 * 18.5 * 2cm / 7.9 * 7.3 * 0.8in   Package weight: Approx.120g / 4.3oz  Package including:   1 * Wireless Stereo Headset  1 * USB Cable