Multimedia compatible, want to do anything to play. Watching TV, listening to music, play games, sing, unfamiliar street, micro-channel . . . . . . Long press MFB button for about 4 seconds long red light 2 is off. SRS audio, built-in DSP echo achieve environmental noise cancellation, CSR8615 chips. Long press MFB button for about 2 seconds the blue light flashes four times a boot. Support power displaysimultaneously, one with two features are compatible with all devices with Bluetooth. University of Cambridge tribute silicon Bluetooth 4.0 wireless technology company's top programs, long standby standby time is about 150 days or so, so when the call time 8 cloud. ShangXi personally create the best sound quality Bluetooth headset, equipped with acoustic tuning KZ developed 10MM pronunciation unit.