The STIX II Pro true wireless earphones with Active Noise Cancelling have optimized audio drivers, ENC Quad Pro microphone and Bluetooth 5.3 for super low power consumption. 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.