Mini Portable Bluetooth Card Speaker with USB and U Disk Playback

This mini portable Bluetooth card speaker is a compact audio device for simple everyday listening. It supports card and U disk playback as well as Bluetooth connection, so you can choose the source that suits your setup. With a 70 x 110 x 50 mm plastic shell, it takes up little space on a desk, shelf, or bedside table. The built-in 3.7V 400mAh lithium battery and USB charging make it easy to move around the home. It is available in white, pink, blue, black, and green. The 5W output, 60Hz-15KHz frequency response, and signal-to-noise ratio of at least 70dB are stated in the product information. Bluetooth reception reaches up to 10 metres, and charging takes 2-3 hours.

Features and Construction

The speaker is built around a plastic shell that measures 70 x 110 x 50 mm. Its controls and connections support card, U disk, and Bluetooth playback. The built-in lithium battery is rated 3.7V 400mAh, and USB charging is used to recharge it. The stated output power is 5W.

Material and Build

The shell material is plastic, which forms the outer housing of the speaker. The product information lists a built-in 3.7V 400mAh lithium battery as the power source. USB is the interface type for charging. The speaker is designed as a portable unit, with dimensions of 70 x 110 x 50 mm. No additional materials or build claims are provided beyond these details.

Size and Practical Fit

At 70 x 110 x 50 mm, the speaker is small enough to sit on a desk or shelf without taking up much room. The compact size also makes it easy to move between rooms. It is available in five colours: white, pink, blue, black, and green. The 10-metre Bluetooth receiving distance gives some flexibility in where you place the speaker relative to your device.

Uses and Placement

This speaker suits casual listening where a small, portable unit is more practical than a larger system. It can play audio from a card, U disk, or Bluetooth device. The built-in battery supports use away from a fixed power outlet for the duration of the charge.

Event or Professional Use

For small gatherings or presentations, the speaker can be placed on a table or desk and connected by Bluetooth from up to 10 metres away. Card and U disk playback allow you to play stored audio without a phone or tablet. The 5W output is stated in the product information, making it suitable for personal or small-room listening rather than large venues.

Everyday Home Use

At home, the speaker can sit on a bedside table, kitchen counter, or desk. Bluetooth connection keeps the setup tidy, while card and U disk options are useful if you prefer not to pair a device. The 2-3 hour charging time via USB means you can recharge it from a computer, wall adapter, or power bank when a USB port is available.

Benefits and Buying Value

The main practical benefit is source flexibility: card, U disk, and Bluetooth playback in one compact unit. The built-in lithium battery and USB charging reduce reliance on disposable batteries, and the small footprint makes placement easy. The stated specifications give a clear picture of what the speaker offers.

Reuse and Low Maintenance

The rechargeable 3.7V 400mAh lithium battery is refilled via USB, so there is no need for replacement batteries during normal use. Charging takes 2-3 hours as stated. Keeping the speaker dry and storing it safely when not in use are sensible precautions for a plastic-shelled electronic device.

Why Choose This Product

Choose this speaker if you want a small unit that plays from cards, U disks, and Bluetooth devices. It offers a 5W output, 60Hz-15KHz frequency response, and signal-to-noise ratio of at least 70dB. The 10-metre Bluetooth range and five colour options add practical choice. The package includes the speaker, a USB cable, and a user manual.