1、Anti Dry Design: This wall oil diffuser features anti dry design, which ensures high safety, more reliable to use. 2、Timing Function: This portable diffuser supports timing function, let your every day be accompanied by the fragrance of flowers. 3、Phone Control: This smart aroma diffuser can be connected to BT and easily controlled by your phone, easy to setup and use. 4、Silent Work: This essential oil diffuser works in silence, which won't disturb you and affect your work and rest. 5、Wide Application: This aromatherapy diffuser is made of durable ABS material, suitable for your office, bedroom, baby's room, classes, or any other place where you want. 1 x Wall Oil Diffuser1 x USB Cable1 x Wall Sticker3 x Screw2 x Expansion Screw1 x Washer Item Type: Wall Oil DiffuserMaterial: ABSPower: USB ConnectionProduct Size: Approx. 15.8 x 11.4 x 5.7cm / 6.2 x 4.5 x 2.2in ( Manual Measurement, Slight Error May Exist )Weight: Approx. 443g / 15.6oz