Дверной звонок Alpina Wireless

If you're passionate about <b>IT and electronics</b>, like being up to date on technology and don't miss even the slightest details, buy <b> Doorbell Alpina Wireless </b> at an unbeatable price.<br /><br /><ul><li>Colour: White</li><li>Characteristics: <ul><li>Wireless</li><li>Adjustable intensity</li><li>4 Preset sounds</li></ul></li><li>Type: Doorbell</li><li>Compatible: Android, iOS</li><li>Noise level: 80 dB</li><li>Range: 60 m</li><li>Includes: Instruction manual</li><li>Current type: DC</li><li>Frequency: 300 - 920 MHz</li><li>Gain (dB): -3,8/3,8 dBi</li><li>Voltage: 5 V</li><li>Approx. dimensions: 6 x 6 x 2,4 cm</li><li>Connections: USB</li><li>Not included: Button</li></ul>