The JBL Professional EON ONE Battery MK2 Spare Battery is compact and lighter than typical rechargeable batteries, making it perfect for portable devices. It features a proprietary battery size for enhanced reliability and top-notch performance. With up to 6 hours of runtime, you can stay wireless and work longer without interruptions. The battery recharges in just 3 hours, allowing continuous use without needing a power outlet. Delivering 36 V to your compatible speaker, this battery lets you replace older models easily and save time by avoiding frequent store trips. Get yours now for uninterrupted audio convenience!