Features: Four Piece Wine Tool Collection: This wine accessory set provides a complete approach for opening, aerating, serving and preserving wine in single convenient package. Includes battery powered bottle opener and aerating pourer for enhanced wine enjoyment. Effortless Opening & Efficient Aeration: Features 35mm wide opening electric corkscrew for smooth uncorking. The built in aeration channels in the electric wine pourer quickly oxygenate wine while pouring, cutting traditional decanting time by 15 20 minutes. Air Extraction Preservation Feature: Comes with vacuum wine stopper that removes air from opened bottles, maintaining wine quality for about seven to protect original flavor. Rechargeable Battery & Standard Charging: Powered by sustainable lithium batteries with common charging port. The aerating pourer can process over 30 bottles per full fee for extended use. Safe Materials & Ergonomic Design: All wine contact parts use accepted food safe materials. Designed with simple controls on both opener and aerator for comfortable handling during home incidents or celebrations. Specifications: Product name: Four-piece wine set substance: Food contact grade safety substance Size: as shown in the size chart Usage scenarios: Family wine tasting, friend gatherings, holiday celebrations, giving as gifts Bottle opener: Lithium battery 1330 3.7V 300mAh Wine divider: 3.7V lithium battery 14500 500maH Package Includes: Four-piece set SGS--9x1 note: Pay attention to the storage methods.