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 .Please feel free to contact us if you have any questions.Description:Modular partner jack design allows it to connect a row of mini speakers to get unexpected audio performance. The new Lager 45mm driver provides precise treble to produce outstanding sound. Because of high capacity battery, it can use a longer time and doesn't worry about low battery.Excellent heavy bass diaphragm and CVC noise reduction technology bring you better music quality. The extended BXS can drive a more complete and richer low-end response.The case is made of plastic, which makes it durable.The diameter is 5.2cm and the height is 5.5cm.It supports mobile phone, laptop, tablet, A2DP, AVRCP, headset, hands-free, profile, TF card, USB, FM, Bluetooth.Item Name: Bluetooth SpeakerMaterial:PlasticCharging Time: about 2 HoursOutput Power: 3WBattery Capacity: 520mAh (Included)Playback Time: about 1 HourFrequency Range: 280Hz - 16KHzTransmission Distance: 10mBluetooth Version: 3.0Signal to Noise Ratio: > = 95dBDistortion: