The working principle of automatic cradle device is to lengthen the spring with the weight of the baby and the cradle, and drive the cradle to rise by the elasticity of the spring, so the number of needs to be installed strictly in accordance with the actual weight, otherwise it can not be adjusted to the best swing speed frequency. The speed adjustment knob of the control host machine adjusts the speed and frequency of the motor runner driving the rope to lift, and provides the power for the cradle to swing up and down repeatedly, not the taxed speed in a taxed gear position. Each spring can load 3 kg, a total of 5 springs, according to the weight of the number of springs, the corresponding position.

Bullet Points
1. Adjustable Swing Speed: The electric swing comes with operating swing speed adjustable, inbuild music sounds. the swing speed and music of the electric swing
2. Durable & Safe Material: This Electric swing cradle is made up of safe environment-friendly and durable material
3. Lightweight Design : it’s a breeze to move from room to room throughout your home or to take with you when you travel. It’s so easy to soothe your baby wherever you need to go.
4. Included Components in the box - 1 motor unit,5 Springs,2Hooks,3 Nylon rops, One AC/DC Adaptor, One Remot, two batteries, 
5. Recommended age : 3 months to 2 Years ( 15kg )
6. Space saving design
7. Natural Rocking Up and down Movement Make Your Baby's Sleep Comfortable