Deep, rich sound Great sound should never be compromised. Thanks to 6 mm drivers and an occlusive eartip design that blocks out noise, these discreet and ultra-light earbuds pack in deep, rich sound for an immersive audio experience from the gym to the grocery store. Enhanced stability You’re constantly moving, but your earbuds shouldn’t be. With secure-fit earloops, patent-pending eartips with stabilizers and a 2-in-1 stability clip that can be attached to your shirt or used as a cinch, BackBeat FIT 350 is designed to stay in place during even your most rigorous training sessions. Power through the day Wherever you go, keep the music playing. From your morning workout to your mid-day errands, enjoy up to six hours of wireless listening and get up to one hour with a 15-minute quick charge. Worry-free wearing BackBeat FIT 350 features a sweatproof and IPX5-rated water-resistant design, with a sport-weave cable that minimizes friction by sliding smoothly over skin during your most intense workouts. That means you can listen to your favorite songs anytime, anywhere – even in rain and humidity. Key Features Maximum stability with secure-fit earloops, patent-pending eartips and a 2-in-1 stability clip Ultra-lightweight design provides all-day comfort 6 mm drivers and passive noise-canceling eartips deliver deep, rich sound and block out noise Up to six hours of wireless listening on a single charge IPX5-rated water-resistant and sweatproof design Technical Specifications Bluetooth®: Bluetooth 4.1, HFP 1.6, HSP 1.2, A2DP v1.2, AVRCP v1.4 Listen time: Up to 6 hours Talk time: Up to 6 hours DeepSleep: Up to 6 months Speaker driver size: 6 mm Frequency response: 20 Hz – 20 kHz Sensitivity: 106 dBSPL Impedance: 16 ohm Harmonic distortion: ≤3% Passive noise cancellation: Yes Weight: 15 g /.05 oz Water protection: Water-resistant and sweatproof, IPX5-rated Wireless range: Up to 33 ft/10 m Charge time (zero battery to full): Less than 2 hours Number of mics: Single wideband-enabled mic Multi-point: Connects to 2 devices simultaneously and streams from either one