Materials: ABS plastic, bamboo. Wireless version 5.1 with rechargeable 720mAh lithium polymer battery. Clear speaker sound with 10W output. Approx. 30-foot wireless range. Compatible with most phones that support wireless charging. It is recommended to check your device specifications before purchasing to ensure compatibility. Supports fast charging up to 15W when paired with any 20W+ or PD wall adapter. Base LED lights glow when charging. Microphone and call answer feature. Instructions and USB-C charging cable included.