1. 5W speaker full screen range, unit of sound, b and surround reverb match, let you listen to the music yoursf. 2. Wiress Bluetooth transmission, using 5.0 upgrade chip, stable and fast transmission, effective distance of 10 meters, high-fidity sound , restore music scene. 3. Built-in 1200mAh large-capacity battery, fast charging speed, long battery life, continuous use for about 6 hours. 4. Support Bluetooth connection playback, also support TF card playback, AUX input, broadcast (AUX import signal) and other four playback modes. 5. Built-in HD call microphone, intligent noise reduction and no noise, support for hands- calling. 6. With only compatible chips, it can adapt to various terminal devices, desktops, laptops, mobile phones, and can also be used as TV stereo. (Must be connected via Bluetooth). Product parameters: 1. Bluetooth version: BT 5. 0. 2. External interface: Micro USB, TF auxiliary. 3. Output power: 5W. 4. Signal to noise ratio: greater than or equal to 75dB. 5. Voltage: 3.7V. 6. Chann: Stereo. 7. Bluetooth protocol: A2DP / AVRCP / HSP. 8. Material: ABS. 9. Battery capacity: 1200mAh. 10. Play time: 8 hours. 11. TF support: MP3, WAV. 12. Support TF card storage capacity: no more than 32GB. 13. Product size: 120x70x92mm. 14. Product weight: 235g.