Bluetooth Essential Oil Diffuser 100ML Hang Up Smart Control Aromatherapy Diffuser for Home 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)