Supports : Microphone, Bluetooth, Hands-free Calls, Volume Control TF Card Music Player: Built-in TF card read-only decoding, can play TF card stored in MP3 / WMA format music directly.
Using the latest Bluetooth 4.1 technology, support for a variety of tablet PCs and smart mobile phones and other Bluetooth devices.
Dual-mode power supply: built-in lithium battery, can be used via USB interface, power supply, or use DC5V USB power supply, dual power supply mode free choice.
Voice calls, can be a key to answer a call, double-click call back, driving is a good partner.
Compact & Powerful : High Quality Certified Wireless Portable Mobile Bluetooth Speaker Delivers Powerful Sound And Robust Bass.