Product Main Features: 1. Shorten the response speed of the electronic throttle 2. Improve the electronic throttles sensitivity 3. Plug and play without external power supply 4. 6 modes/46 degrees adjustable 5. Full accelerating mode / semi accelerating mode / accelerator mode / economic mode available 6. It can get into the car mode while reversing for optional 7. Super bright LED digital display screen, blue / red for optional Product Function: 1. FH mode: Applicable to manual transmission automobile. It can improve instant acceleration property and force of automobile to obtain optimal acceleration effect through improving response speed of auto electronic choker. Note: There are 9 micro-adjustment sections of manual full acceleration the sense of weak-to-strong acceleration is extremely evident. 2. FA mode: Applicable to automatic transmission automobile. It can improve instant acceleration property and force of automobile to obtain optimal acceleration effect through improving response speed of auto electronic choker. Note: There are 9 micro-adjustment sections of automatic full acceleration the sense of weak-to-strong acceleration is extremely evident. 3. HH mode: Applicable to manual transmission automobile. It can improve instant acceleration property and force of automobile to obtain optimal acceleration effect through improving response speed of auto electronic choker. Note: There are 9 micro-adjustment sections of manual semi-acceleration the acceleration effect is slightly poorer than the effect of manual full acceleration. 4. HA mode: Applicable to automatic transmission automobile. It can improve instant acceleration property and force of automobile to obtain optimal acceleration effect through improving response speed of auto electronic choker. Note: There are 9 micro-adjustment sections of automatic semi-acceleration the acceleration effect is slightly poorer than the effect of automatic full acceleration. 5. NOR mode: This mode is equivalent to auto control mode which features balance between sports and comfort. 6. EC mode: This mode delays the response of choker and can achieve economical and environmental-friendly effect.