Rokit Boost Bluetooth Speaker Built-In Microphone for iPhones, iPod and iPad - Retail Packaging - Black Bluetooth Speaker for iPhone, iPad, iPod, Samsung Galaxy S3, Samsung Galaxy S4, Galaxy Note, Kindle, Galaxy Note, Amazon Kindle Fire HD, HTC Droid and One S, Nexus 7, Nexus 4, and all tablets, Smart Phone and PC Bluetooth Speaker CSR V2.1 Chipset Bluetooth Speaker Charging Time :3 to 4 hours Most popular among Bluetooth Speakers. Great shape and sound. Enjoy wireless music .