SOLEMEMO C1 Portable Wireless Bluetooth Speaker with 10 Hour Playtime and 30 Days Standby Time,nfc Compatibility and Full, High-Def Sound (Black) Full, High-Def Sound: Enjoy an impressively full sound quality and robust bass realized through a 5W*4 audio driver and passive subwoofer. Long Playtime, Fast Recharge: Enjoy 10 hours of music at 80% volume .Recharge in just 2 hours using the included Micro USB cable. Complete Compatibility: Pair smartphones, tablets, laptops and more via Bluetooth (up to 10 meters / 33 feet) or NFC, or connect non-Bluetooth devices such as MP3 players using the included AUX cable. Wireless :Bluetooth 4.0 + EDR,NFC Tap & Play Technology,supports HFP /A2DP AVRCP protocol,easy to pair with no Bluetooth code / pin needed. Handfree Control:Built-in microphone and speakerphone - take calls hand-free directly through the speaker.