Upgrade version of the popular SX-991: with active lifestyle sport yellow, feel more energetic; adjust the key "+"."-" to the side surface, more convenient that of the inside.
Unique Foldable and Retractable feature: more special and humanized than the universal neckband style design, quite easy to storage for pocket and better cord management, easy to carry on the go.
Top Sound Quality: adopt with the latest Bluetooth chip, hear richer and quite natural sound from your devices, and provides more fast and stable Bluetooth Pairing.
Crystal Clear Communication: built-in high sensitivity Microphone and combine with CVC 6.0 Noise Cancellation technology, ensures your chat without external noise or other interference.
Outstanding Battery Performance: Bluetooth 4.1 Offers a Faster, More Energy Efficient Connection and lower battery consumption, supports 18 hours talking time, 16 hours music playback time and more than 300 hours standby time.