Features: This durability AA Battery Holder features a waterproof and dustproof design, providing reliability power supply in harsh environments with stainless steel springs for stable conductivity and versatile button or infrare remote control operate. Constructed from quality ABS/PC, it includes wear resistant stainless steel springs to prevent rust and ensures long lasting performances, while supporting easy button or remote control functionality. Ideal for outdoor enthusiasts, hobbyists, and users of devices like remote controls or who need a dependable, portable battery solution for frequent battery changes. Perfect for camping, hiking adventures, home electronics setups, and various projects where consistent, dustproof performances is essential in challenging conditions. Its compact design securely holds 3 AA batteries, offering a practical accessory for portable gadgets . Specifications: Component: ABS/PC, steel spring Size:Approx. 8x6cm/3.15x2.36inch for 3 AA batteries (AA batteries not included), Option Type:Battery Case with 3Function,Battery Case with 8Function,Battery Case+Remote with 8Function, 3Function:on,off; 8Function:Combination,Sequential,Sloglo, Chasing,Slow fade,Twinkle,on,off; Features: Waterproof and dustproof design, Package Includes: Package A 1pc Battery Holder (batteries not included) Package A 1pc Battery Holder (batteries not included) 1pc Remote note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.