Bluetooth Chip Tracker helps prevent the loss of keys and other valuables, with OS support iOS, basic functions include sound signaling, compatible apple Siri shortcuts, Bluetooth version 5,0, signal range 120 m, replaceable battery CR2032 with an endurance of up to 12 months, red colour, practical dimensions 0,9 mm × 9 mm × 37 mm, weight 49,9 g