HD77 Bluetooth portable speaker comes with 25W of crisp 360° HD Sound and DualBass double subwoofers, for an unmatched listening experience. Don’t be fooled by the gorgeous looks and cool ambient LED’s of this waterproof Bluetooth speaker. It is super rugged for all your outdoor sports, hiking, and getting active. HD77 isn't afraid of moisture or tough love. It’s shockproof and waterproof speaker IPX6 rated so it loves singing in the rain and doesn’t mind being dropped, kicked or bounced. Treblab HD77 doesn’t play games with PlayXTend energy-saving tech and high-capacity 5200mAh battery for you up to 20 hours of medium volume play per charge. Rain Or Snow, It’s a Go. All Day Power On a Single Charge. Made For Outdoor Sports And Adventures. Extraordinary 360° HD Sound. HD77 Bluetooth portable speaker comes with 25W of crisp 360° HD Sound and DualBass double subwoofers, for an unmatched listening experience. HD77 Bluetooth portable speaker comes with 25W of crisp 360° HD Sound and DualBass double subwoofers, for an unmatched listening experience. Don’t be fooled by the gorgeous looks and cool ambient LED’s of this waterproof Bluetooth speaker. It is super rugged for all your outdoor sports, hiking, and getting active. HD77 isn't afraid of moisture or tough love. It’s shockproof and waterproof speaker IPX6 rated so it loves singing in the rain and doesn’t mind being dropped, kicked or bounced. Treblab HD77 doesn’t play games with PlayXTend energy-saving tech and high-capacity 5200mAh battery for you up to 20 hours of medium volume play per charge.