Waterproof column speaker/usb cable/custom packing bluetoothspeaker Bluetooth version H019 Material Aluminium alloy + Metal mesh Size 85*54*5.5mm Speaker 4Ω3W Battery 5V/300mA rechargeable Li-polymer Signal ≤10M Advantages Bluetooth/Hands free phone calling/Mini USB/Colorful LED/TF/MIC/AUX/USB2.0 or Card reader/Crack and Colorful style Color Customize and price based on black Accessories USB cable. color.box.user manual.