Specifications:The wireless speaker has bluetooth-compatible 3.0 chip, which has 10 meters transmission space.Double speaker with special technology brings you excellent music experience.U disk, TF card, AUX, FM and other playing modes are supported.Automatic pairing is allowed, which is convenient to use.It can be connected with PC, mobile phone and other devices with the function of Bluetooth.Item Name: Wireless SpeakerMaterial: ABSModel: B28SBluetooth Version: bluetooth-compatible 3.0Transmission Distance: 10mSpeaker: 52mm, 3/5WAmplifier Specifications: Dual Channel: 5W x 2Battery Capacity: 1800mAh (Included)Work Time: 3-4 HoursControl: 4 ButtonsFeatures: Wireless, Rechargeable, Automatic PairingSize: 40cm x 7cm x 5.5cm/15.75" x 2.76" x 2.17" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Wireless Speaker1 x USB Charging Cable1 x Audio Cable