Press the button and the device will emit sound and light to notify you at a distance. Size: 90 x 33 x 91mm
Wireless range: Outdoor line of sight distance approx. 180m (indoor approx. 90m)
Melody sound types: 64 sounds (chimes, melodies, voices, sirens, etc.)
Power supply: 3 AA alkaline batteries (sold separately) or AC adapter (X0505, sold separately)
Weight (excluding batteries): 87g
