6D Smart Bluetooth Music Eye Massager Vibration Airbag Compress Eye Care Instrument Eye Massage Glasses Eye Relax Fatigue PouchSPECIFICATIONS Application: Eyes Choice: yes Is Batteries Included: Yes Item Type: Massage & Relaxation Description: 1. It is recommended to adjust to an appropriate tightness during use (you can slowly adjust the tightness according to the experience during use), leaning against the sofa or chair for better fit, more uniform force, better effect and better comfort! 2. It is recommended to use 1 2 times a day for 10 20 minutes each time. Remember to