Marshall Stockwell II speaker combines the best features in a portable speaker - powerful Blumlein Stereo Sound multi-directional sound, a lightweight and durable construction, long battery life, and a stylish design. You can take the speaker on the go and enjoy the music. Blumlein Stereo Sound Stockwell II utilizes the Blumlein Stereo Sound construction to create a multi-directional music experience for you and those around you. 20+ Hours of Playtime Party all night with the music running. Stockwell II gives you over 20 hours on a single charge. Enjoy music for hours and get 4 hours of playtime from the speaker after just 20 minutes of charging.