TF/Micro SD Card Reader, Aux input, FM Radio Mic. for hands free calling. Premium Brushed Metal finish body with Top Firing Bluetooth Version: 4.1 + EDR 3W RMS output speakers Rechargeable 300 mAh Battery for extended usage. Dynamic Sound Effect with Crystal Clear Sound Playback. 10 Meters operating Range Playback Time : Up to 5 Hours Stand by Time : 30 Hours Charging Time: 1-2 hours Frequency response: 100Hz - 18KHz Speaker Type: Single Speaker Answer, end, reject calls. Listen to music with volume adjustment, previous/next/pause functions. TF card playback support & aux playback support. Product Weight: 200g Product Dimensions: 6.5 x 6.5 x 7 cm Box Content : 1 x Speaker, 1 x Micro USB Charging Cable, 1 x Aux Cable, 1 x User Manual.