1 Built-in battery, 1-2 months ultra long battery life depends on the mode 2 18dB ultra low noise, mute operation 3 Compact and portable, desktop and wall-mounted 2 installation methods 4 oil bottle, detachable and replaceable Modes: 1 Blue light: Spray 2 sec each 15 min, 24 h loop 2 Green light: Spray 2 sec each 30 min, 24 h loop 3 Red light: Spray 2 sec each 60 min, 24 h loop 4 Green light: Press the button and hold to spray continuously, release to stop Battery capacity: 300mAh Charge port: Type-c Charge time: 40min oil bottle capacity: 35ml Size: 150 x 66 x 34mm color:White Material:ABS Package Contents: 1 x Diffuser 1 x USB cable 1 Set x installation accessories Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is 1-3cm