Product Description Specification: Wireless Barrel Speaker 10W 3″ BT / FM / TF Immersive bass wireless compact speaker ultra portable with durable strap for easy portability, Sync and plays music from smart devices through Bluetooth. S/N Ratio: ≥70dB Frequency: 120Hz C20KHz Battery: Built-in 3000mAh rechargeable battery Input: DC 5V Transmission: 10m Output Power: 10 W RMS Speaker: 3 Inches Weight: 950 g (approx.) Dimensions: 250 x 125 x 115 mm (L x W x H)