1. Technology: Ultrasonic, no noise. 2. Installation: car. 3. Power: USB recharge 4. Oil: water-based essential oil. 5. Time set: 3 levels to choose. Work 3 times of spray 1.5 sec pause 1.5 sec, pause 5/10/15 minutes different. 6. Car mode： it has vibration sensor function. When car works it works, when car stop it stops. 7. 2 modes for choice: car mode or home mode.

1. Control: LCD screen + button, WIFI + Bluetooth control. 2. Power: electric, 110-240V, 50/60 HZ 3. Installation: Wall-mounted with board, desktop. 4. Memory record: memory battery inside for save the time setting. 5. Work time: 5 working period time programming, 24 hours from Monday to Sunday, 10-200 seconds for choice for work / pause time. 6. Fan: built in fan for better fragrance diffusion, with button to control open / close 7. Noise: low noise. Built-in mute spare part.

1. Control: LCD screen + button, WIFI + Bluetooth control. 2. Power: electric, 110-240V, 50/60 HZ 3. Installation: Wall-mounted with board, desktop, can working with HVAC. 4. Memory record: memory battery inside for save the time setting. 5. Work time: 5 working period time programming, 24 hours from Monday to Sunday, 10-200 seconds for choice for work / pause time. 6. Fan: built in fan for better fragrance diffusion, with button to control open / close. 7. Noise: low noise. Built-in mu