The Remax Bottle speaker RB-M48 boasts an exceptional 6000-hour standby time, delivering immersive 360-degree surround sound with dual speakers reaching up to 120dB, covering an area of 100 square meters. Its long-lasting 1200mAh battery charges fully in 3-4 hours, ensuring minimal downtime. With a compact design and nylon lanyard for easy carrying, this speaker offers powerful sound and extended battery life for versatile use.