Bluetooth Speakers, ECHTPower Portable Wireless Stereo Speaker with Built-in Microphone Support Hands-free Function, FM Radio, Clock, Dual 5W Acoustic Drivers, 12 Hours Playtime Support all the audio format/APE/FLAC, Micro SD card,TF card Hifi surprisingly clear and natural sound quality delivers you optimal music experience Unique design, well - selected materials, novel appearance and advanced workmanship Built-in microphone for hands-free speaker phone calling. Easy to pair, up to 8 hours playtime