How to Use: 1. Short press the ON/OFF key, the ring begins to vibrate. 2. Each press changes one speeds. 3. Long press the ON/OFF key for 3s, it turns off. Characteristics: -Material: Medical grade silicone -Dimension: 3.5 inch (length) 1.97 inch(diameter) -Vibration Mode: 6 Speeds -Power Supply: USB Charging -Using Time: At least 2 hours after a quick and full charge -Features: Waterproof and Flexible Notice: 1. Keep it clean before and after every use. 2. Store the charging cable line separately, away from children.
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