The Ryobi Tek4 4-Volt Lithium-ion 3-Piece Combo Kit contains a screwdriver, flashlight and noise-suppression headphones. The headphones are designed with speech amplification so you can still hear conversations while cutting out loud machinery noises. The screwdriver has a 1/4 in. quick-connect chuck that is compatible with SpeedLoad+ accessories as well as normal hex shank bits. The flashlight can shine up to 100 ft. and is resistant to water, shocks and dust.