I am an Chinese seller,providing customers with high-quality and low-cost products. The types of products we sell include Home & Kitchen,Health & Beauty,Fashion Clothing,Electronics,Watches & Jewelry,and so on. We keep up with the most popular fashion trends. If you like our products, please follow us and become our followers and fans. Sincerely at your service .Thank you for shopping and have a nice day.Description:Bluetooth 5.0 chip has 10m transmission space, bringing high performance. Excellent stereo and heavy bass sound effect will be provided. Exquisite craftsmanship makes the speaker has durability. TF card is supported to play music.Mini compact size bluetooth-compatible speaker is easy to be carried. With large capacity battery, the wireless sound box can work for a long time.Made of premium aluminum alloy material, the bluetooth-compatible speaker is reliable.Diameter of the voice box is 8.5cm and height is 3.7cm.It is suitable for home, office, travel, dormitory, etc.Item Name: bluetooth-compatible SpeakerMaterial: Aluminum AlloyOutput Power: 3WInterface Type: USBBattery Capacity: 400mAh (Included)Playback Time: 4 HoursFrequency Range: 100Hz-20kHzTransmission Distance: 10mBluetooth Version: 5.0Signal to Noise Ratio: 70dBPlayback Format: MP3Size Details: 8.5cm x 8.5cm x 3.7cm/3.35" x 3.35" x 1.46" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x bluetooth-compatible Speaker1 x USB Charging Cable1 x User Manual