The STIX II Pro true wireless earphones with Active Noise Cancelling have optimised audio drivers, ENC Quad Pro microphone and Bluetooth 5.1 which delivers super low power consumptionThe ENC (Electronic Noise Cancelling) Quad Pro microphone delivers superior audio quality for voice calls over the internet and with the latest Bluetooth chipset extending call/play time to up to 5 hours.The STIX II Pro includes a pocket sized rechargeable carry case which charges the STIX II up to 5 times, super-fast 45 minutes charge time, built-in Smart Touch to control your music/calls and IPX5 water resistant chassis to enhance your audio experience Features: ANC - Active Noise Cancelling ENC (Electronic Noise Cancelling) Quad Pro microphone delivering superior audio quality for voice calls Up to 5 hours play time - Includes a pocket sized rechargeable carry case which charges the STIX II Pro up to 5 times Built-in Smart Touch to control your music and calls Bluetooth 5.1 which delivers super low powe