2025 Eco-Friendly Smart Digital Temperature Display Stainless Steel Hydrogen Hot Water Bottle

2025 Eco-Friendly Smart Digital Temperature Display Stainless Steel Hydrogen Hot Water Bottle. Smart Temp Display: Features digital Celsius/Fahrenheit temperature display for precise monitoring. Premium Material: Made from 18-8 food-grade stainless steel, BPA-free and eco-friendly. Long Insulation: Double-wall vacuum design keeps drinks hot or cold for up to 24 hours. Custom Logo: Supports laser engraving, silk screen, 3D, and heat transfer logo printing. Wide Color Options: Available in 15 colors in stock with full customization options. Factory Direct: Professional manufacturer in Dongguan with own R&D and QC departments. Fast Sample Time: Stock samples available within 1 day; production samples in 1-3 days. Versatile Usage: Ideal for in-car, indoor, office, outdoor, travel, gym, and sports.