The STIX II Pro true wireless earphones with Active Noise Cancelling have optimised audio drivers, ENC Quad Pro microphone and Bluetooth 5.3 for super low power consumption. The ENC (Electronic Noise Cancelling) Quad Pro microphone delivers superior audio quality for voice calls over the internet, and the latest Bluetooth chipset extends calls/play time up to 7 hours. The STIX II Pro includes a pocket sized rechargeable carry case which charges the STIX II up to 3.5 times, super-fast 50 minutes charge time, built-in Smart Touch to control your music/calls and IPX5 water resistant chassis to enhance your audio experience.