Features: brand new and high quality 5W speaker full screen range, pronunciation unit, and surround sound reverb matching, let you listen to music in person. Built-in 1200mAh large-capacity battery, fast charging speed, long range, can be used continuously for about 6 hours. Only equipped with compatible chips, can adapt to a variety of terminal devices, desktops, laptops, mobile phones can be used, can also be used as TV stereo. (must be connected via Blue-tooth). Support 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, intelligent noise reduction and no noise, support hands-free calling. Wireless BT transmission, using 5.0 upgrade chip, stable and fast transmission, effective distance of 10 meters, for high fidelity sound quality, restore music scene. Specifications: Blue-tooth Version: Bt 5.0 External Interface: Micro Usb; Tf; Aux Output Power: 5w Product Color: Black, Wood Grain Signal to Noise Ratio: ≥75db Voltage: 3.7V Channel: Stereo Blue-tooth Protocol: A2dp / Avrcp / Hsp Battery Capacity: 1200mah for Play Time: 8h Tf Support: Mp3, Wav Storage Type: Tf Maximum Capacity Does Not Exceed 32g Material: ABS Color: Black, Wood Grain Product Dimension: approx. 120x70x92mm/4.72x92x70inches Net Weight: 310g/0.68lbs Package Includes: 1PC Small Wireless Nostalgic Speaker note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.