Specifications:It features wireless BT transmission, using 5.0 upgrade chip, which is stable and fast transmission,effective distance of 10 meters, high fidelity sound quality, restore music scene.Built-in 1200mAh large-capacity battery has fast charging speed, long range, can be used continuously for about 6 hours.This speaker supports BT connection playback, also supports TF card playback, AUX input, radio (AUX import signal) and other four playback modes.Built-in high-definition call microphone has intelligent noise reduction and no noise, support hands-free calling.Only equipped with compatible chips, it can adapt to a variety of terminal devices,such as desktops, laptops, mobile phones, can also be used as TV stereo (must be connected with Bluetooth).The capacity of supporting TF card does not exceed 32G.Item Name: bluetooth-compatible SpeakerExternal Interface: Micro USB, TF, AUXSpeaker Power: 5WMaterial: ABSBattery Capacity: 1200mAh (Included)Bluetooth Version: 5.0Voltage: 3.7VMemory Card Slot: TF Card (Not Included)Features: Retro, Mini, Wireless, PortableSize: 12cm x 7cm x 9.2cm/4.72" x 2.76" x 3.62" (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 AUX Adapter Cable1 x Data Cable1 x Manual