JBL! Charge 4 model Bluetooth speakers 
 
Wireless Bluetooth Streaming
Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns enjoying the powerful sound.
 
Up to 15 hrs of Playtime
Built-in rechargeable Li-ion 4500mAH battery supports up to 15 hours of playtime and charges your device via USB port.
 
IPX7 waterproof
Take Charge 4 to the beach or the pool without worrying about spills or even submersion in water.
 
Durable fabric and rugged material
the durable fabric material and rugged rubber housing allow your speaker to outlast all of your adventures.
 
Bass Radiator
A dual passive radiator delivers powerful, ear catching sound that resonates loud and clear.