The outer shell is made of high quality ABS material, not easy to age, durable in use Features time setting function, you can set time to achieve automatic turn on and off, you will feel more comfortable for living in the place where it is full of fragrance Three week date mode you can set: Monday to Friday, Monday to Saturday, Monday to Sunday, When power on, machine auto default is AM 8:00 Monday, Factory set, inside of the total spray times is 3000 times, spray time AM 8:00 to the PM 8:00, interval time is 15 minutes, Sunday is rest day. The spray interval time from 1min to 60mins according to actual demand, to meet different requirementsEasy installation, wall mounted design, widely used for office room, living room, bathroom, rest room, cafe, restaurant, hotel, etc. Specifications: Material:ABS Color:Ivory White Power Supply:2 x D Type Batteries(not included) Capacity:300~320mL Air Freshener Bottle Application:20~25m Size(L x W x H):approx. 86 x 83 x 238mm / 3.39 x 3.27 x 9.37inch Weight: approx. 500g Package Included: 1 x Scent Dispenser(air freshener and battery not included) Note 1: When power on, machine auto default is AM 8:00 Monday. Note 2: Factory set, inside of the total spray times is 3000 times, spray time AM 8:00 to the PM 8:00, interval time is 15 minutes, Sunday is rest day.