Specifications:Using bluetooth-compatible 5.0 technology, it can be paired within 10 meters.Equipped with 3W speaker output power, with surround sound effect, let you enjoy wonderful music.The 300mAh battery make the standby time longer and can play for 10 hours.Built-in high-definition noise reduction microphone, which support hands-free call, so you can make a one-key hands-free call.The small size make it easy to use and carry.Using environmentally friendly materials, it is durable and safe to use.Item Name: bluetooth-compatible SpeakerBluetooth Protocol: 5.0Effective Distance: 10 MetersSupport Function: TF Card(TF Card Not Included), Call FunctionPower Mode: Built-in BatteryInterface Type: USBOutput Power: 3WBattery Capacity: 300MAh(Included)Playing Time: 10 HoursExpansion Storage: 32GB(Not Included)Material: ABSFeatures: Built-in Microphone, Noise Reduction Technology, Large Capacity Battery, Easy to CarrySize: 12cm x 6cm x 3cm/4.72" x 2.36" x 1.18" (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 bluetooth-compatible Speaker1 x USB Charging Cable1 x User Manual