NiZhi Portable Mini TT-026 NFC Wireless Bluetooth speakers professionalHiFi Sound box with MIC & NFC, Hands Free Call Speaker with LED Flash Light Speakerphone Support: Bluetooth function, NFC function, Line in Material is ABS with UV craft (piano lacquer), which can resistance to scratching Battery: 400mAH rechargeable lithium battery Auto Voice Prompt power on/off and Bluetooth is connected and disconnected It can remote control 15-20M straight-line distance