Seller: marketnet_gre (3,891) 99.3%, Location: Achaia, Monodendri, Vrachneikon, Ships to: Worldwide, Item: 172216695149 Ecosavers Kinetic Energy Powered Wireless Doorbell no batteries USB 5V The EcoSavers® Kinetic Wireless Doorbell uses kinetic energy for powering the transmitter. Normal wireless doorbells using batteries which needs to be replaced regularly. The EcoSavers Kinetic Wireless Doorbell converts the pushing force into energy which provides the radiosignal to the USB powered receiver. This product comes with an AC USB adapter for energizing the receiver. You can select 38 different ringtones on the receiver. The receiver has a built-in LED which also gives a visual indication when somebody pushes the doorbell. An normal electrical doorbell uses average around 26 kWh of power. This is because an adapter converts 220V energy into low voltage to power the doorbell. This adapter is 24/7 working for the standby of the doorbell. The Kinetic Wireless Doorbell of EcoSavers uses only 7 kWh of power a year, so to replace your existing electrical doorbell with the Kinetic doorbell, you can save up to 19 kWh of electricity a year. If you decide to disconnect the receiver from the power at night, your saving can be up to 21 kWh ! Besides the saving of electricity, you have the convenience of a wireless system without batteries, so you also save batteries compared to other wireless doorbell systems. Normal 0 false false false MicrosoftInternetExplorer4 Shipment Costs & Options: 1. Economy = REGULAR public postal service (the simplest cheapest way WITHOUT TRACKING NUMBER). 2. Standard = REGISTERED shipment by post (with tracking number RECOMMENDED) 3. Expedited = EXPRESS & REGISTERED shipment by post (With tracking number & express sticker) Please check the costs at the Shipping and payment tag! Return Policy Accepted In All Products! (Money Back or Exchange) Feel free to contact us for any information and orders!Thanks for Visiting!