iClever IC-BTS01 Rechargeable Portable Wireless Bluetooth 4.0 Speaker with 3.5mm Audio Input Jack-Supports Music Streaming and Hands-Free calling Mondrian design makes for elegance and grace;2.0 channel design with stereo sound. Built-in microphone and easy to use music controls; Support hands-free calling and answering function. Built-in high-capacity rechargeable battery ensures comfortable long-term use and reliable performance. High power and compact size guarantee distortionless transmission; Bluetooth 4.0 (fully backwards compatible) for connecting with Bluetooth-enabled devices, such as iPad, iPhone, iPod touch, smartphone, tablets, etc. Support 3.5mm audio input(While a 3.5mm audio cable is plugged into the AUX line-in port, buttons will not be available).