CE-3600 Ultrasonic Contact Lens Cleaner Applications: This product is suitable for cleaning all different kinds of RGP hard lens, orthokeratology lens, etc. Can be used along with any brand of contact lens care solution together. Specifications: 1. Ultrasonic Frequency: 100KHz 2. Tank Material: Stainless Steel SUS316 3. Tank Capacity: 2ml 4. Power Supply: DC 5V (USB) 5. Ultrasonic Power: 5W 6. Timer: 3min 7. Unit Size: 88*86*44mm( L x W x H ) 9. Weight: 133g (0.29lbs)