Jmen Bluetooth Headphones V4.0 Wireless Sport Stereo, In-Ear Noise Cancelling, Running Ear buds, Indoors, Outdoors, Gym, SweatProof, HD Headset with Mic, For All Smart Phones, iPhone, Android Black STRONG WIRELESS SIGNAL: You can enjoy skip-free HD music in a 10-meter working distance, even if use your music devices left/right side, above/below waist. JMEN BRAND CERTIFIED: Top-Brand Bluetooth Headset HD- High Definition for all Smartphones, PC, Notebooks, and Skype. Able to connect To Two (2) Mobile phones. UNIVERSALLY COMPATIBLE WITH MOST BLUETOOTH-ENABLED PHONES: And built-in extra-long High Performance Rechargeable Lithium Battery allows up to 6-hour talking/playing time and 185-hour standby. BLUETOOTH V4.0: With apt-X tech, the Swift headphones ensure high-fidelity stereo music and clear speech via Noise reduction. EXERCISE-PROOF & SWEAT PROOF: HD surround sound design guarantee 100% Stable and Comfortable when exercising, running, climbing, driving, skating, camping, and fishing and other outdoor sports. Small, medium and Large Silicone Ear Buds and Carry Pouch included.