BluDento are able to change the “BLUETOOTH ID” for pairing instead of the default "B2" ID. However you will have to leave us a note when ordering.Key Features:Use this HD Bluetooth music receiver instead of buying a brand new Bluetooth sound bar; turn your older stereo into a nifty Bluetooth capable oneCIRRUS LOGIC CS8406: CIRRUS LOGIC digital conversion chip for high-quality digital outputSound quality with aptX HD though better than from SBC codec so aptX HD Bluetooth is far superior to standard BluetoothSetup is extremely easy. Once plugged in, the device automatically makes itself available to be paired. No password or key requiredCompatible with all DSPs, standalone DACs, amplifiers, preamplifiers, power amplifier, A/V receiver and PA speakersThis one offer THREE useful outputs – analogue RCA (instead of lower quality headphone jack), digital optical and digital coaxial - all work in parallel so one Bluetooth input can be distributed to three amps/DACs at the same timeThe use of a dedicated digital-analogue-converter ESS ES9108K2M (instead of the cheap integrated DAC of the Bluetooth chipset) enables audiophile grade sound output at the analog RCA jacksaptX Low Latency codec ensuring synchronized audio during video playbackAuto-reconnect to last paired device during power-up, remembers up to 5 devices at onceIt runs stone cold, not surprising since Bluetooth uses very much less power than Wi-FiSPECIFICATIONS:Bluetooth Version: 5.1;Bluetooth Profiles: A2DP, EDRLDAC,aptX HD, aptX Low Latency, aptX Classic, MP3, AAC, SBC, WAV, FLAC and DSD audio codecs;Built-In DAC: ESS ES9018K2M PCM interface: 32bit, 384kHz(Max);CIRRUS LOGIC digital conversion chip for high-quality digital output: CIRRUS LOGIC CS8406;Supports 48kHz / 24bit LPCM audio data;DAC SNR(Typ): 127dB;Receiver Sensitivity (basic rate, typical): – 90dBm;Audio Input: Bluetooth ONLY;Audio Outputs: Analog Stereo RCA, Digital TOSLINK Optical and SPDIF Coaxial;Power Input: Type C USBPower Supply: DC 5V 0.5A-3A USB power adapter required (NOT INCLUDED)Q&A:Is the Bluetooth always on when the unit is powered on, or does it go to sleep? and are all 3 outputs active at the same time?Yes, always ON, no sleeping mode;Yes it works. You get output from analog, SPDIF and TOSLINK at the same time.Is this version also a Bluetooth Audio Transmitter?This is simply a Bluetooth receiver!Can you rename the BT device? I want to connect several of these to a multi-zone whole house audio amp & want to know to which zone I am sending.Yes, we are able to customize the “BLUETOOTH ID” for pairing instead of the default "B2" ID. What is more, we can set different passcode for every BluDento device. The passcode of BluDento device is set to 0000 (four zero) by default. You have to leave us a note when adding the order to the cart.Can you have two identical HIFI Bluetooth music audio receivers in one household ?Yes, but ideally they should have different Bluetooth IDs. BluDento are able to customize the “BLUETOOTH ID” for pairing instead of the default "B2" ID. You have to leave us a note when adding the order to the cart.If you use the optical out, does it bypass the DAC?Yes, digital outputs: Optical & Coaxial bypass the on-board DAC.Do you have a comparison of your BLT-HD version vs B2 version? What are the primary differences?Both B2 and BLT-HD are AAC, SBC, aptX, aptX LL, aptX,HD LDAC supported;B2 is with an OLED display but BLT-HD NOT;B2 is with a button called "MFB": SHORT PRESS to TURN ON/OFF Display ONLY; LONG PRESS to DISABLE current Bluetooth connection. What is the max VRMS level of the L & R channels outputs?2.12V at 50HZ at 0dB.Does the power supply adapter come in the box? If not how do I get it?No, Any 5V USB charger it's fine.How many A (amps) minimum does the USB power adapter need to be for this unit?Min 0.5A.How many Bluetooth devices can simultaneously stream to this device?Only one.How many source devices can be connected at the same time?Two.I have multiple phones/tablets/laptops. I can't tell which is currently connected to the device. How can I force-pair the one I have in my hand?Long Press the button of "MFB" then try to search and connect B2 again.Does it have a on/off button or auto-on when power is connected? and will it remember the connected device when it comes back on after power was cut?Auto on after power on; long press MFB button to disable current Bluetooth connection; short press to turn ON/OFF display; Yes it searches for previously paired Bluetooth devices when powered up.