Thank you for viewing! Purchased new about two months ago, used only once and in perfect working condition. I am selling it to organize my inventory. The product is a ＜Limited Production＞ The Mini Gyro V3 features a convenient switching button and allows you to set EPA (end point adjustment), end point reset function, gyro forward/reverse function, and gain mode selection (normal or AVCS selectable) with a single button. It is an ultra-small and lightweight specification that can be installed in 1/10 RC cars, mini RC cars, and 1/8 RC cars. Gain adjustment can be done in two ways: using the main unit volume or remote gain control using the transmitter's CH3. This is the latest mini gyro that automatically connects to both analog and digital servos. ＜Size＞ 21X15X8.75mm ＜Weight＞ 3.5g Thank you for your consideration. Note: I don't think the unit itself smells, but please refrain from purchasing if you are concerned about general household odors. Type...Radio control car Type...Radio control car