THOR LEVEL 3 + ECHO THOR LEVEL 3 + ECHO The flagship kit combines a powerful titanium-steel alloy THUNDER speaker, a high-strength plastic STORM speaker and an ECHO high-frequency speaker for maximum effect. Powerful and dense bass, rich midrange and spectacular shots create a full range of sound character of the car. Realistic engine response and the sporty voice of the car in every acceleration. The system has been compatible with vehicles since 2005. Management via the mobile app. Included: THUNDER 2.0 ECU STORM ECHO UPGRADE PRO