Wireless Bluetooth Speaker Outdoor Sport Shockproof Dust-proof Super Bass Stereo, High-def Sound (Army Green) 1. Support bluetooth connected play and two-way conversation. One key Bluetooth reconnection 2. Support APE/FLAC, MP3/WMA/WAV format audio files stored in TF card 3. The perfect Bluetooth speaker for iPhone, iPad, iPod, MacBook, Samsung Galaxy s4 and s3, Galaxy Note, Amazon Kindle Fire HD, HTC Droid and One S, Nexus 7, Nexus 4, and all tablets, Smart Phones and PCs 4. Support shut down automatically after TF card pause playing or AUX sound off for 10 minutes 5. TPU material to improve the resistance