QC-002 Stops mouth breathing and snoring, achieving the most comfortable breathing effect. Simply insert it into the nasal cavity to effectively eliminate snoring. By supplying oxygen, mouth breathing stops, snoring ceases, and the most comfortable breathing effect is achieved. Effectively eliminates snoring. Electric Anti-Snoring Device Model: QC-002 Specifications: 60mm*31mm*41mm Materials: ABS/Silicone (for food contact) Accessories: Charger/Product Manual How to use: Please refer to the instruction manual for details.