Portable Wireless Mini Speaker With Screen Can Be Use For-disk And Card Supports And AUX Connections To Mobile Phones Computers Laptops And MP3/MP4 Product parameters： Product Name: mini speaker Material: metal Product color: Product size: 5.2x5x5cm/2.05x1.97x1.97in Packing size: 10x8x7cm/3.94x3.15x2.75in Gross weight: 140g/0.31lb Output power : 3W4Ω Radio frequency: 87.5-108MHz Power input: DC5V Playback duration: about-3 hours Battery capacity: 550mAh（built-in battery） Power interface: USB Product description: Aluminum alloy appearance, high-power aluminum diaphragm speaker, clear treble and excellent, making the sound quality even better. This mini speaker can be said to be combination of classic and modern The sound quality is very good and super refreshing. variety of fashionable colors are available. It contains lithium battery. It is good companion when going out, at home, and playing. It is equipped with standard 3.5 audio input cable and can be used as an external speaker for mobile phones, laptops, desktops, and MP3/MP4 This speaker is known for its compactness (probably the smallest card reader speaker in the industry), light weight, and features such as screen display and radio. The aluminum alloy appearance and iron speaker protection net make the speaker antidrop and New miniature aluminum diaphragm speaker, 3W 4Ω antimagnetic. The sound quality is clear and the volume is loudly. Built-in LINE IN audio input interface, which can be connected to computers, mobile phones, MP3, Tablets and other audio, with antenna for radio reception Built-in lithium battery, computer USB interface directly supplies power, or optional USB power adapter provides power. easy operation and long battery life allow you to listen to your favorite sounds of nature anywhere Package Included: 1xBluetooth speaker 1xUSB charging cable 1xAUX line