Bluetooth Adapter AUX Input Hands Free Calls Low Noise Stable Signal Fit For 3 Series E90 E91 E92 E93 X1 E60 Item Type: Bluetooth AdapterMaterial: ABSBluetooth Version: 5.0 Working Current: 20MA Sampling Frequency: 44.1/48/96KHz Frequency Response: 20 Hz-20 KHZ Frequency Range: 2.402-2.480GHz Transmission Distance: 15 meters Distortion Rate: ≤ 1% Signal to Noise Ratio: 95db Product Features: Audio HD transmission through the original AUX signal Bluetooth version 5.0 supports aptX,aptX HD, and aptX LL Support for TWS (receive mode) AC6925A stereo Bluetooth chip Integrated intelligent voice noise reduction technology to reduce echo and noise Power Supply Mode:1. Use the original car CD plug 12v power supply, black power is the negative pole, red is the positive poleApplication: Fit for 3 Series E90 E91 E92 E93 X1 E60 2003- Allows you to stream your music via the Bluetooth function of the mobile phone / smartphone to your car stereo.in conjunction with: AUX must be selectedor are to be enabled! 609 (navigation system) SA 650 (Business radio with CD drive) SA 661 (Business radio with CD drive) SA 662 (Business radio)