NFC wireless Bluetooth V2.1 music receiver for iPhone iPad Adopts Bluetooth V2.1 wireless transmission technology Can change ordinary audio into a Bluetooth stereo wireless audio Listen to wireless music from your iPhone, iPad, mobile phone or laptop & so on that with Bluetooth function If your phone has NFC, just tap it to the audio receiver to make an instant connection For Bluetooth phones or computers without NFC, the pairing process is the same as if connecting other regular Bluetooth audio receivers & speakers Support Bluetooth hands-free calling Compatible with any 3.5mm stereo line input devices With LED indicates the pairing situation Built-in rechargeable 500m A Li-battery Bluetooth Version: V2.1 Bluetooth Stereo Audio Profile: A2DP 2.1 Operating Distance: up to 10m Power: DC5V Net Weight: 44g/1.55oz