All sabers have various character fonts (4 fonts on the Youngling Saber) with a mute function if no sound is required or wanted. Adjustable volume lets you set how loud the 2-3W speaker plays sounds. Flash on clash giving a more realistic combat feel when hitting objects and lock up to replicate those intense battles. 3 Blade Modes, steady, pulse and unstable. Smooth swing alters the sound on orientation of the saber motion. The youngling hilt is made from strong plastic so is durable for use by small children. The hilt also has multiple sections which can be disassembled so the sabers can be customised with alternative parts or attached together in to a staff. The polycarbonate blade with a 2mm thickness can withstand hard impact so it is suitable for duelling and hitting against other blades. Please note this saber uses a thin blade (7/8"). Comes with a 3000mAh built in rechargeable battery and USB charging cable with a charging time of about 2 hours. Allen key and screws are included to let you assemble the blade to the hilt. We recommend this hilt for young children age 3-6. Length: 23.5cm -Blade: 7/8" Instructions on how to use the sabers can be found here