Product Details:Mini Wireless Bluetooth Music Speaker with TF MicroSD Card Support Microphone
Supports phone/ laptop/ Tablet PC/MP3/MP4. Supports TF Card/Bluetooth function. Modular "Buddy Jack" Design : Connect a row of mini speakers to get jaw dropping audio performance. Expanded bxs (Bass Expansion system) drives a fuller, richer low-end response. New, larger driver delivers precise high for superb sound. Built-in Microphone. Bluetooth Function. Handsfree Call Feature. Built in Rechargeable Lithium Battery. Compatible with Laptop/MP3/MP4 Player and External Audio Devices.