Features: Engineered for Stage 320/ 4 battery replacement, this high capacity power solution features compatibility across multiple speakers models and ABS construction for outdoor resiliences. The high strength ABS housing ensures superior shock resistance and wear protections, while toolless snapping in allows effortless battery swaps in seconds without technical expertise. for outdoor enthusiasts, frequent travel, and camping adventurers who require quick changes power sources for their portable sound setups. Maintains uninterrupted music during extended beach parties, hiking expeditions, or backyard gatherings where ruggeds portability meets sustained speakers performances. Optimized energy efficiency reduces power waste while delivering consistent voltages output, ensuring for Stage 320/ 4 maintains claritys across environmental conditions. Specifications: Materials: ABS Size: 93x90x26mm for Stage 320/ 4 Package Includes: 1PC speakers Battery note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.