, Unique Alloy housing KBS08 Wireless Speakers are compatible with all Bluetooth enabled devices as well as devices with 3.5mm jack , Crank up the volume and fill your room with music. Place the portable speaker on wood table or desk to get best Bass effect , Micro SD support and AUX capability provide endless audio options, compatible with Bluetooth audio devices such as smartphones, laptops and computers , Betron wireless speakers are equipped with built in microphone for Hands-free calling, Built-in TF slot support MP3 Music Play and Built in FM Radio , Lightweight and small design is ideal for travelling, durable metal speaker housing