4.The materials and accessories of the BTR3K.
【Materials】The BTR3K is textured with an aluminum alloy body and a double-sided 2.5D glass on the front and back, and 6H hardness which competes the scratch hardness resistance of iphone's touch screen and would not be easily scratched during normal use. Please avoid mixing your BTR3K with sharp metal objects such as keys. Besides,its rear clip is made of ABS material.
【Accessories】a USB Type-C cable, a rear clip, a lanyard, a manual and warranty Card, a Bluetooth Instruction manual