Feature: 1. It uses high-performance Bluetooth 5.0 smart chip to make the connection simple, fast and stable. The maximum connection range is 10m. 2. Built-in 1200 mAh high-capacity core, long duration, medium volume playback time is 5 to 8 hours. 3. 57mm Rutie-Bor with bass diaphragm, the stereo effect is more powerful, so that you can enjoy 3D sound experience. 4. Support BT / TF / U disk / AUX / FM and other playback modes. 5. The built-in intelligent noise reduction microphone can ensure high-definition hands-free calls without causing interference. 6. Support trading platform functions. Speakers with dual speaker matching mode can easily create stereo effects. Specification: Product Type: Wireless Bluetooth Speaker Color: black/blue/red/white (optional) Bluetooth version: V5.0 Working range: 10M Power: 5W Frequency response range: 120HZ-20KHZ Signal to noise ratio: ≥80dB Distortion: 1% Battery capacity: 1200mAH Charging voltage: 5V / 500mAh Playing time: 2-3h Support: TF / USB / BT / FM function Size: about 85mm x 148mm x 105mm Weight: about 0.43kg Package Included: 1 Bluetooth speaker 1 x audio cable 1 x charging cable 1 x user manual