Description 1. [ADVANCED BLUETOOTH V5.3 TECHNOLOGY]: Enjoy seamless wireless connectivity with the latest Bluetooth V5.3, providing a stable and efficient connection for your music on the move. 2. [Level 5 Waterproof & Designed for Cycling]: This speaker is built to withstand your lifestyle with Level 5 waterproof protection, making it the perfect companion for cycling and outdoor sports, brave with confidence. 3. [LONG PLAYING TIME & RECHARGEABLE BATTERY]: Keep the tunes rolling with up to 3 hours of playtime at normal volume, powered by a built-in 500mAh rechargeable battery for your convenience. 4. [Powerful Sound in a Compact Design]: Experience impressive audio quality from a compact speaker, featuring a ¢45mm speaker unit and 5W power output that delivers clear and dynamic sound wherever you go. 5. MATERIAL AND DIMENSIONS: This product is crafted from stable ABS material and mesh fabric. It features a compact design with product dimensions of 5 x 10 x 7.2 cm (1.97 x 3.94 x 2.83"). Package list 1 * Bluetooth Speaker 1 * USB Charging Cable 1 * User Manual