Come and see our amazing products. Made of aluminium alloy. This mini speaker is conveniently small but able to HD sound with impressive bass and room-filling loudness through a high-performance driver and a passive subwoofer. Small, but such powerful Bluetooth speakers. Wireless streaming music or internet radio services such as Pandora and Spotify from your Smartphone, Phone. Built-in 300mAh lithium-polymer battery guarantees 2 hours of play time, and up to 4 hours(at 50% volume). Just half an hour of charge time with 1A charger equals 2 Hours of play time. Pls confirm with us about the packing info, stock color and exact production time before placing your order.