Portable Wireless Mini Speaker With Screen Can Be Use For U-disk And Memory Card Supports FM And AUX Connections To Mobile Phones Computers Laptops And MP3/MP4 Product parametersProduct Name: mini speaker Material: metal Product color: Black Product size: 5.2x5x5cm/2.05x1.97x1.97in Packing size: 10x8x7cm/3.94x3.15x2.75in Gross weight: 140g/0.31lb Output power : 3W4 Radio frequency: 87.5-108MHz Power input: DC5V Playback duration: about 2-3 hoursBattery capacity: 550mAhbuilt-in batteryPower interface: USBProduct description: Aluminum alloy appearance design, high-power micro aluminum diaphragm speaker, clear treble and excellent bass, making the sound quality even better. This mini speaker can be said to be a combination of classic and modern The sound quality is very good and super refreshing. A variety of fashionable colors are available. It contains a lithium battery. It is a good music companion when going out, at home, and playing. It is equipped with a standard 3.5 mm audio input cable and can be used as an external speaker for mobile phones, laptops, desktops, and MP3/MP4This speaker is known for its compactness (probably the smallest card reader speaker in the industry), light weight, and features such as screen display and FM radio. The aluminum alloy appearance and iron speaker protection net make the speaker antidrop and durable New miniature aluminum diaphragm speaker, 3W 4 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 anywherePackage Included:1xBluetooth speaker1xUSB charging cable1xAUX line