【Bluetooth-compatible 5.3 Connectivity】Advanced Bluetooth-compatible 5.3 technology ensures stable wireless connection with a range of up to 10 meters. 【Powerful Audio Output】Dual 78mm speakers with 15W output each deliver rich, room-filling sound with deep bass. 【Multi-Functional Design】Features FM radio, USB and TF card playback, and hands-free calling for versatile use. 【RGB Lighting Effects】Enjoy a vibrant audio-visual experience with built-in colorful LED lights. 【Long-lasting Battery】3600mAh battery capacity provides up to 3 hours of continuous playback. 【Portable and Outdoor-friendly】Compact size with a carry handle makes it perfect for outdoor activities and travel. Specifications: Bluetooth-compatible Version: V5.3 Transmission Range: 10 meters Signal-to-Noise Ratio: ≥95dB Battery Capacity: 3600mAh Battery Voltage: 3.7V Playback Time: Up to 3 hours Speaker Size: 78mm x 2 Speaker Power: 4Ω/15W x 2 Charging Input: 5V/2000mA Dimensions: 266 x 139 x 200mm Weight: 1565g