Bluetooth 4.2Qualcomm aptX Low LatencySupported profiles A2DPSupported codecs SBC, aptX, aptX LL (supports aptX LL only when only one headphone is connected, which is also equipped with apX Low Latency)Frequency range: 20 - 20,000 HzNumber of channels: 79Transmission frequency: 2402 to 2480 MHzSwitchable between two sound sourcesBluetooth pairing button on transmitterTwo-colour LED status indicator (blue and red)3.5 mm jack connection and optical inputWeight: 85 gIncldues 1.5 m audio cable with 3.5 mm jack plug, 1.5 m optical cable and 1.2 m USB-A to USB Micro-B charging cable