Feature: 1. 1. Wireless Bluetooth Speaker Sound delivers surprisingly big audio and punchy bass from Go 3' s ultra-compact size. 2. 2. IP67 waterproof and dust-proof, so you can bring your speaker anywhere. 3. 3. Wireless stream music from your phone, tablet, or any other Bluetoothenabled device. 4. 4. Give you up to 5 hours of play time on a single charge. 5. 5. Ultra-portable design goes great with the latest styles, and its design make it look as great as it sounds. Specification: Specification Material: Stainless Steel, Aluminum Alloys, Plastics Color: Blue, Black, Red, Orange, Green, Pink, Grey, Orange Black, Dark green, Camouflage green Size: 9 x 4 x 7.5 cm Weight: 210 g Output Power: 4.2 W Battery Capacity: over 4000 mA Power Source Type: Battery Powered Audio Compatibility: Mobile, PC, Laptop Connection Type: Wireless Waterproof Grade: IP67 Frequency Response: 110 Hz to 20 kHz Signal to Noise Ratio: >85 dB Bluetooth: 5.1 Battery: Lithium-Ion Polymer (LiPo), 5 V Package Include: 1 Wireless Bluetooth Speaker. Package List: 1 Wireless Bluetooth Speaker