Do M4 features
Battery- The powerful battery allows you to talk with your dear ones without plug in the charges every now and then. Listen your favorite music for long hours without any interruption. Music- Enjoy your favorite music, Listen your favorite RJ's and Wireless FM channels with DO mobile auto tuned FM radio with recording.32 GB of the expendable memory allows you to store music, videos and photos. Camera- Digital camera with flash, so you can never miss the memorable moments of the life, Its rear LED flash lets you capture your favorite memories, even in low-light situations, so you always come away with great images. Warranty- 1 year manufacturer warranty for device and 6 months manufacturer warranty for in-box accessories from the date of purchase, 120 Days of Replacement Within 12 Months Warranty.