Multi color will come-using the latest Bluetooth 4.1 technology, support for a variety of tablet PCs and smart mobile phones and other Bluetooth devices
TF Card Music Player: Built-in TF card read-only decoding, can play TF card stored in MP3 / WMA format music directly.
dual-mode power supply: built-in lithium-Ion battery, can be used via USB interface, power supply, or use DC5V USB power supply, dual power supply mode free choice.
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.