Features: Open-Ear Design - Once you experience bud-free listening, you'll never go back. Free ears means no earphone induced swimmers ear. Bone Conducton - Leap of faith - The exceptional audio quality is unimaginable with the current bone conduction technology in the market. Built-In MP3 Player - Supports MP3, WMA, AAC, WAV, & FLAC Audio formats. IP68 Waterproof - Built to withstand heavy perspiration and complete submersion in up to 2 meters of salt or fresh water for 2 hours. Versatile and Secure fit - Easy to wear with swim caps, goggles and earplugs Extrodinary underwater sound quality 8-Hour Battery Life - Crystal clear music for long training sessions. 4GB of memory - Up to 1200 songs Whats in the box: Xtrainerz Waterproof Headphones USB Cable · Charging Base Storage Case Waterproof Earplugs User Manual Warranty Card Specifications: Battery: Lithium battery Speaker type: Bone conduction Continuous play: 8 hours Frequency response: 20Hz~20KHz Battery capacity: 183 mAh Sensitivity: 93±3dB Charge time: Compatible profiles: MP3, WMA, AAC, FLAC, WAV Weight: 30g Max charge voltage: 5.25 V Speaker impedance: DC: 8.5omh Sweat resistance: IP68
