Buildable, codable, interactive robots from UBTECH Robotics. The high-torque servos create fluid and precise movement. Create your unique Robot manually. Connect it to your Bluetooth or phone to program and control its movements. The pieces snap together by hand, no tools required. It's easy to use for children and teenagers. The Jimu software is open sourced that enables players to share their creations all over the world through JIMU community. JIMU Robots are made of environmentally friendly materials that are durable and safe for children. Interlocking Parts 293 Servo Motors 3 Control Box 1 Power Adapter 1 Lithium Battery 1 Material PC plastic Supply Voltage DC6.8V-DC9.6V (Typical Rating: 7.4V) Operating Current 1A-2ABattery Capacity 1200mAh Connection Bluetooth 3.0/4.0 BLE+EDR Servo Specs (1) Torque output 4kg.cm (2) Speed 0.1S/60°” Operating Temperature -5°C-60°C Compatible System Support Android 4.0.3 version and above; IOS7.0 version and above