Phaiser BHS-530 Bluetooth Headphones, Wireless Earbuds Stereo Earphones for Running with Mic and Lifetime Sweatproof Guarantee, Oceanblue HD SOUND - 10mm Speakers combined with Bluetooth 4.1 create super accurate HD sound with powerful bass. The bullet-shaped Comply T-400 M memory foam tips provide Total Isolation from external noise. SWEAT PROOF - Say Goodbye to Water-Damage! Protected by Liquipel Nano Coating your Buds withstand sweaty workouts and will survive accidental dropping into water - Guaranteed! SECURE FIT - The special Behind-The-Head wearing style holds your Buds in place during rigorous workouts. The flexible Memory-Wire adapts to the size of your head and helps provide a perfect seal for a better listening experience. MICROPHONE - The built-in microphone makes it possible to use the headset for Calls. The headset reads out the callers number when a Call comes in, and the Audio you were listening to is silenced. When you hang up, audio starts back up automatically. LIFETIME SWEATPROOF WARRANTY - We will replace your Earbuds in case they ever get damaged by sweat! No questions asked. Phaiser FlexCore BHS-530 Bluetooth Headphones Carrying Case 3 Pairs Earphone Tips - Small, Medium, Large 1 Pair Comply T-400 Memory Tips - Medium Charging Cable User Manual Bluetooth Specification: 4.1 Bluetooth Profile: AVRCP/A2DP/HSP/HFP Liquipel Watersafe Technology Transmission Distance: 30-40 ft Battery: Lithium-ion Polymer 110 mAh Frequency Response: 20Hz -22kHz Charging Port: Micro USB Charging Time: 1-2 Hours Playback Time: UP to 11 Hours Standby Time: 350 Hours