Feature: 1. 100ML Capacity: The essential oil diffuser has a capacity of 100ml that provides long lasting of consistent soothing mist and spreads the aroma in your room effectively, having quiet operation. 2. Smart Bluetooth Control: The diffuser comes with Bluetooth technology, can be controlled by button, multifunctional supply operation, simple and convenient. 3. Hang Up Design: With its innovative hang up design, you can put this aroma diffuser anywhere you want like bedroom, office, or yoga room, space saving. 4. Sturdy Material: The shell is made of premium PP material, which is optimized by thickening and strengthening for more durability, ensuring long term use. 5. Adjustable Gears: With 10 atomizing gears and 90 to 900 seconds stop atomizing time, you can meet your fragrance requirements for diffuser space. Specification: Item Type: Bluetooth Essential Oil Diffuser Size: Approx. 16 x 14.8 x 6cm/6.3 x 5.8 x 2.4in (L x W x H)Weight: Approx.532g/18.8oz Mounting Hole Diameter: Approx. 9cm/3.5inPower Supply: Battery, USB (Choose one of the power supply methods) Battery (Shipped Without Battery) : D Battery x 2 1.5V USB Power Supply (Shipped Without USB Cable) : 5V Coverage: 90m³ Function: Aroma Usage: Hang Up Capacity (Shipped Without Liquid) : 100ml Operation Mode: Bluetooth, Button Setting Occasions: Suitable for hotel, family, physiotherapy, hot spring Resort, sauna, SPA, KTV, leisure club Problems And Solutions: No Atomization: Check whether the power switch indicates that it is flipped correctly. Check if the machine stops atomizing during non working periods. The air pump is damaged, replace the new air pump. (this step requires disassembling the machine) Check whether the air pipe of the machine or atomizer head is loose and falling off. Small Atomization: Atomizing core is blocked, clean with alcohol or replace with a new atomizing core. The sealing gasket on the atomizer head falls off or is damaged, replace it with a new gasket. Atomizer tube falls off. Reattach Oil Leakage: The bottle is loose, please install the bottle atomizing head seal gasket is broken or missing. Spray Liquid: Atomizer head is damaged, replace the new atomizer head machine tilt or lie flat. Abnormal Noise: The air pump is loose, re-fix the air pump, the air pump is damaged, replace the new air pump. (this step needs to disassemble the machine). Package List: 1 x Essential Oil Diffuser1 x Key1 x Accessory1 x Double Faced Tape3 x Expansion Tube4 x Screw3 x Nail1 x Cap1 x Manual Note: 1. Select the USB power supply or battery power supply according to the DIP switch on the device operation panel, and plug in the power supply or according to the positive and negative terminals.2. Install the battery (the first time you use the battery, you need to wait 3 minutes before it starts to work).3. Insert the key, turn the key in the direction of Open to open the front shell and take out the atomizer head, and twist the essential oil bottle to open the essential oil. After filling the essential oil, twist the atomizer head again and put it back on the equipment.4. Cover the front shell and turn the key in the Close direction to lock the front shell5. After installing the machine, please keep the machine upright. Leaning or lying flat may cause oil spills. If the board is corroded, the efficiency of the machine may be affected.6. If you are not a technician, you may not modify, disassemble or repair the machine. If the machine fails, please seek professional help.7. Avoid fire or electric shock, use the power cord must not be broken, forced to bend, yank or heavy pressure, trim or rework, do not use damaged or do not conform to the power socket power plug.