- Wireless door bell
<br />- Long detection range: up to 150 meters at the open place
<br />- Built-in 32 melody chimes
<br />- Volume control dial available on door bell
<br />- Voltage: AC 220V
<br />- Comes with 1 x 23A 12V battery + 1 x sticker + 2 x screws
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<br />                                                                            Dimensions: 3.39 in x 2.76 in x 1.69 in (8.6 cm x 7.0 cm x 4.3 cm)
<br />Weight: 3.49 oz (99 g)
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