fashionable design with graceful sound quality, the latest decoder chip, supports TF card playing, supports hands-free, aux function, FM radio (Optional)An audio companion for computer, mp3, mp4, mobile phones, long time to play and portable, 3-5 hours playing. Specifications: - Power Output: 3wx1 - Frequency Response: 100Hz-18kHz, IS/N Ratio: >85db - Distortion: < 0, 3% 1W 1kHz - Bluetooth standard - Supports TF card, working range 12meters