1、FIVE 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. 2、2000MAH BATTERY: The bluetooth speaker cooler backpack is designed with our 2000mAh battery, which is applicable with the beach, boat, picnic, camping, party, festival. 3、CAPACITY: The bluetooth speaker cooler backpack can hold beer or sodas, drinks. Enough for your planned outdoor activities. Two excellent zippers on the front provide lasting durability. 4、KEEP 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. 5、600D POLYESTER AND PEVA: Our bluetooth speaker cooler bag has 7mm thick insulation, made of 600D polyester and PEVA material. Item Type: Solar Speaker Insulated Ice Pack Material: 600D Polyester, PEVA Battery Capacity: 2000mAh (shipped with built in battery) Battery Type: Lithium Polymers Battery Solar Charging Time: 20-24 hours USB Charging Time: 3H Bluetooth Version: 4.0 1 x Bluetooth Speaker Ice Pack 1 x USB Output Cable 1 x USB Charging Cable 1 x Instruction Manual