Part Numbers/FCC ID: M3N32337100, 13577766. Frequency: 315MHz. Note: Not a key shell, it is a whole keyProximity Fob Fits for Chevrolet Tahoe 2015-2020, for Chevrolet Suburban 2015-2020, for GMC YUKON 2015-2020Pros of Our Keyless Remote: With built in chip, sensitive response, 6 buttons car key: Lock, Unlock, Remote engine start, Power door release (back gate), Glass hatch release, Panic alarm. Fast response, wireless remote control.Notice Programming: This remote and door key must be programmed and cut by a qualified locksmith or dealership(consult some different locksmiths before programming to ensure it is successful).NOTE a working key fob was needed in order to add a new key. This remote must be programmed and cut by a qualified locksmith or dealershipPackage for Car Key Fob:1 x Car Keyless Entry Remote (Battery included). Size: 6.4x4cm / 2.52"x1.57"(L*W). Please check OE number/FCC ID and product picture with originally one before purchase.