Crystal Clear Sound Quality‎:‎ Comes with latest Bluetooth 4.0 CSR chipset‎,‎ wirelessly deliver premium stereo audio performance for crystal clear hands‎-free music playback‎,‎ phone calls‎,‎ movie watching etc‎.‎Less Charging & More Doing‎:‎ Built‎-in rechargeable lithium battery that can be fully charged within 3 hours to support 5hrs music & talk timeAesthetic and Ergonomic Design‎:‎ Elegant and graceful look with wonderful breath lamps‎,‎ touch sensitive buttons‎,‎ auto search for pairing devices after power onEase of Use‎:‎ Support voice prompts and can pair up to 2 devices simultaneously with 10m transmission distance‎.‎Reliable and Friendly Customer Service‎:‎ Ready to respond within a 24 hour time frame‎.‎ 30‎-Day Money Back Guarantee‎,‎ 12‎-Month Replacement Warranty and Lifetime Support Guarantee