Mould King 13112 APP Remote Control Excavator Toy Building Kits Flexible control function The excavator’s body can be rotate through 360 degrees. With working shovel Raise and lower the shovel to transport the things. Learn how excavators work Explore the authentic functions that make a real excavator work. Package include mutil motors You can enjoy a rewarding build and play experience with the Technical Excavator Toys. This Excavator Truck building kit sparks imagination, offers endless build-and-play fun, and is an action-filled holiday, birthday or anyday gift for kids who like building challenges, excavator toys and construction toys. How many motors and batteries are included? Contains 4 M motors, 1 L motor, 1 servo motor, and two 4.0 lithium batteries. Is it rechargeable or does it use AA / AAA type bateries？ Package includes multi-rechargeable lithium batteries, you don't need to install your own AA/AAA batteries. How long does a battery last? About 15-20 minutes. What do I need to do if the product is missing parts? Please contact Mould King by Amazon, we will send the pieces you need for free. Mould King Building Sets RC Excavator Building Buying Options Crawler Tractor Building Buying Options Wheat Harvester Building Buying Options V8 Engine Building Blocks Buying Options RR V12 Engine Building Buying Options Supercar V8 Engine Buying Options V8 Engine Building Buying Options Customer Reviews 4.2 out of 5 stars 247 4.4 out of 5 stars 16 4.1 out of 5 stars 9 3.7 out of 5 stars 11 4.5 out of 5 stars 2 5.0 out of 5 stars 2 4.1 out of 5 stars 43 Price $103.99$103.99 $93.49$93.49 $73.09$73.09 $52.79$52.79 $31.99$31.99 $37.59$37.59 $110.49$110.49 Product number Mould King 13112 Mould King 18020 Mould King 17014 Mould King 10203 Mould King 10205 Mould King 10206 Mould King 10130 Theme Construction Site Technology Technology Tractor Technology Tractor Electric Motor Series Electric Motor Series Electric Motor Series Electric Motor Series Include motors ✔ ✔ ✔ ✔ ✔ ✔ ✔ Controlled by remote control ✔ ✔ ✔ ✘ ✘ ✘ ✘ Number of blocks 1830 Pieces 1698 Pieces 1265 Pieces 1169 Pieces 733 Pieces 737 Pieces 2718 Pieces