Trisonic Wireless Digital Door Chime 36 Musical Melodies

Transmitter measures 3 1/4" x 1 1/4" x 7/8" receiver measures 4 1/4" x 3" x 1". 36 different selectable musical melodies. 300 ft range. Transmitter uses 1-CR2032 battery(included) receiver uses 2-AA batteries (not included). Select flash, sound or slash & sound. Waterproof transmitter. FCC, ETL, CE & ROHS compliant. LED indicator light. Great for homes, office, factories, hotels etc. Wireless Design Range is approximately 300-Feet Adjustable voiume with your choice of either high, medium or low volume. Wide selection of melodies, with clear and loud sound. Tansmitter and receiver are battery operated. 2 "AA" not included. Waterproof push button with LED indicator. Transmitter measures 3 1/4" x 1 1/4" x 3/4" receiver measures 4" x 2 5/8" x 1".