Speaker Unit: Equipped with a powerful 53 mm driver for clear and dynamic sound. Size Weight: Compact dimensions of 86 × 86 × 44 mm with a lightweight build of 140 g easy to carry anywhere. Wireless Version: Built on Wireless V4.2 JLAC6928B for stable and seamless connectivity. Supported Protocols: Compatible with A2DP AVRCP HFP and HSP for smooth audio and call performance. Playback Options: Multiple modes supported Wireless TF card and AUX input. Power Charging: DC 5V input; full charge in about 2 hours. Playtime: Up to 3 hours of continuous music or talk time. Battery: Built-in 500 mAh Class A polymer battery for reliable performance.