Protects/holds all Soundmatters foxL models (along with AC adapter, audio cable, anti-vibration mat) or anything else you want to keep safe and dry. * Proprietary mechanical pressure relief valve insures easy opening after altitude or temperature change. With its o-ring seal the UltraBox is waterproof (tested to 5m), air-proof and moisture proof - providing the ultimate in light weight protection. * Removable shock-absorbent rubber liner protects your foxL. Lanyard included. * Inside Dimensions ?6.7" L x 2.8" W x 3.0" D ? Outside Dimensions ?7.9" L x 3.9" W x 3.2" D ? Weight ?0.7 lbs ? Made in USA ? Limited Lifetime Warranty (from manufacturer, www.uwkinetics.com)