Features: 360 HiFi Stereo Sound60mm dual drivers and dual passive subwoofers bring powerful bass, Can use TWO speakers (40W) to achieve room-filling stereo sound for 3D stereo surround sound. Wide CompatibilityThe speaker boxes Bluetooth provides faster and more stable signal transmission via dual high-power drivers. The Bluetooth range is 10m. This powerful Bluetooth speaker is compatible with any Bluetooth device. Dual Pairing Wireless Speakers BluetoothConnect 2 speakers together, they would play together at the same time! to enhance the low tones and boost the bass . Memory mode on both speakers for next use. Ideal speaker for birthday party, family barbecue, Christmas dinner, New Year celebration. 5h playing time & 2000mAh portable power bank3.5 hour charging. The powerful 2000mAh Li-ion battery provide up to 5 hours of non-stop music. You can also use the portable speaker as a power bank, charge your phone instantly outdoors or in emergency time. Specifications: Color: Black Bluetooth distance: 10m Output power: 40W Battery: built-in rechargeable 2000mAh Playing time: max. up to 5 hours Charging indicator light: red during charging, goes out automatically when fully charged Waterproof rating: IP67 Product size: approx. 22.5cm x 9.5cm x 9.5cm (L x W x H) Packing List: 1x Wireless Bluetooth speaker 1x Micro USB charging cable 1x 3.5mm audio cable 1x Portable strap 1x User manual 2 x Ribbon(Free Gift) Kelvenix Portable Wireless Bluetooth Speaker Waterproof Stereo Bass Loud USB in Black