Self Powered Doorbell Black Battery Free Wireless Smart Elderly Pager Mini Doorbell

Feature: 1. Self Generating: Wireless doorbell is self generating, wiring free and battery free, using sunlight to realize automatic charging, saving energy and making it more convenient to use. 2. Smart Pager: Equipped with a smart receiver, the self powered doorbell is convenient for the elderly to use, one click to start call function, reminding their family members in time. 3. Long Distance Reception: Battery free wireless doorbell has wider signal transmission range, and the call of the elderly can be received in a long distance, suitable for large residential or office space. 4. Flexible Use: The host of the self generating doorbell pager is paired with two receivers for flexible installation in different rooms or floors. 5. Premium Material: Mini wireless doorbell is made of premium ABS material,sturdy and durable, wear resistant and high strength, ensure long term effective use. Specification: Item Type: Self Powered Doorbell Material: ABS Transmitter: Battery Type: Lithium Battery, Battery Model: None, Battery Capacity: 150mAh (Transmitter is shipped with built-in battery.) Receiver: Working Current: less than 60mA, Static Current: less than 10mA Power: less than 2W Music: 52 Songs Operating Frequency: 433MHz Adjustable Volume: 20-80dB(4 Speed Cycle Adjustment). Package List: 1 x Transmitter2 x Receiver1 x Base1 x Double Faced Adhesive Tape2 x Screw2 x Expansion Bolt1 x Multilingual Manual Note: Transmitter is shipped with built?in battery.