1/ Fashion sports style, foldable, lightweigh, easy to carry.2/ Battery Power display on the iOS device.3/ Can connect two phones at the same time.4/ Support last number redial. Easy control for music and calls5/ Three modes EQ for choose, bass boost /normal /high pitch boost. Powerful bass for your music.6/ Power prompt when you turn on SX-991, it will report the battery power remaining.7/ Support voice dial.8/ Mobile phone anti-lost indicator, when SX-991 connected to your phone, if the distance between SX-991 and your phone is more than 20 meters, SX-991 will prompt “Beyond the range of connections”9/ Incoming voice prompt, when there is an incoming call, you will hear a voice prompt.

SX-991 Bluetooth headset is designed to direct sound straight into your ears with noise-isolating ear gels for deep bass and rich audio.