Features1FIVE MODES: Bluetooth speaker cooler bag has 5 modes. Music mode with RGB lights. Breathing mode, LED can gently illuminate in the dark. Bright mode, clear brightness at night. Night light mode, low light. And SOS mode. 22000MAH BATTERY: The bluetooth speaker cooler backpack is designed with our 2000mAh battery, which is applicable with the beach, boat, picnic, camping, party, festival. 3CAPACITY: The bluetooth speaker cooler backpack can hold beer or sodas, drinks. Enough for your planned outdoor activities. Two zippers on the front provide lasting durability. 4KEEP IT FRESHNESS: The bluetooth speaker cooler bag ice pack will keep you cool and keep your food and drinks freshness when you're out and about with friends and family. It can play up to 12H. 5600D POLYESTER AND PEVA: Our bluetooth speaker cooler bag has 7mm thick insulation, made of 600D polyester and PEVA material.SpecificationItem Type: Solar Speaker Insulated Ice PackMaterial: 600D Polyester, PEVABattery Capacity: 2000mAh (shipped with built in battery)Battery Type: Lithium Polymers BatterySolar Charging Time: 20-24 hoursUSB Charging Time: 3HBluetooth Version: 4.0Package List1 x Bluetooth Speaker Ice Pack1 x USB Output Cable1 x USB Charging Cable1 x Instruction Manual