COMPATIBLE DEVICES Works with all Bluetooth Devices - No Exceptions! THE HIGHEST AUDIO QUALITY uses the highest quality transducers and hardware, as well as Bluetooth 4.1, and A2DP stereo transfer protocols. That means bigger bass, lighter-than-air treble, deliver crisp, clear music to your ears via a smooth, skip-free connection and perfect phone call. THE NEWEST ADVANCED TECHNOLOGY Stable Connected with Bluetooth 4.1 CSR technology brings to long time working with 1-2 hours' recharge, can be used for up to 1-3 hours playing time, 250 hours' standby time. Powerful Bluetooth signal with up to 33 feet operation distance. No playback, No weak batteries, No dropped phone calls... *Please note Playtime varies according to volume level and audio content. WATER RESISTANT IPX4 Nano coating ensures complete defense against sweat or rain. Push yourself to your limit during workouts and With A2I Headphones will handle your audio effortlessly. 30 Day No Hassle Money Back Guarantee!
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