Digitek Bluetooth Speaker DBS-005, Ultra Compact Retro Design, Super Bass. Very Easy connect to Smartphones, iPad, MP3/MP4 Players, Laptop . Built-in Microphone for Hands-Free Call & Dual Large 50mm Speaker units with vibrating membrane. Built-in efficient & Safe Li-ion Battery 1500mAh can call for 4-5 hrs and listening Music for 8-10hrs. Dual Large 50mm Speaker units with vibrating membrane. Support LINE IN, TF Card, USB & FM Radio. With ABS case+Metal mesh+ Silicone speaker is verymuch durable and easy to carry.