No. Now all BluDento units (including BLT-HD) are Bluetooth receivers only, not transmitters. The three connectors (RCA, optical, coaxial) are audio outputs, and Bluetooth is the only input

When the BLT-HD is powered, Bluetooth stays on all the time; there’s no sleep mode.

Yes. The analog RCA, S/PDIF coaxial, and TOSLINK optical outputs all carry signal simultaneously.

No. There is no physical power switch . The unit powers up when 5V USB power is present. When it powers up, it automatically looks for devices that were previously paired.

No. A power adapter is not included. You can use any 5V USB charger in the 0.5–3A range to power the unit.

Yes. The digital outputs (optical & coax) bypass the onboard TI/Burr-Brown DAC and send a digital S/PDIF signal directly to your external DAC or receiver.

The maximum output for the left & right RCA channels is approximately 2.12 Vrms at 50 Hz, 0 dB.

Yes. The antenna uses an I-PEX MHF connector inside the housing. It is removable if you are comfortable opening the enclosure yourself.

BLT-HD supports LDAC (in addition to aptX HD, aptX Lossless, etc.), while BLT-2 does not support LDAC.

Yes. Setting a passkey/PIN is supported on BLT-2, B1 ,and B2 models.

Yes. BluDento can customize the Bluetooth name (up to 10 characters) instead of the default “BLT-HD.” You leave your desired ID in the order notes; once shipped, it can’t be changed.

Yes. You can use multiple units in the same home. It’s strongly recommended to give each one a unique Bluetooth name (e.g., “LivingRoom,” “Kitchen”) so you know which zone you are connecting to.

On an Android phone, you can: 1. Enable Developer Options. 2. Open Bluetooth Audio Codec in the developer settings. 3. Check which codecs are available; if you see aptX HD, choose it. Typical options you may see include AAC, SBC, aptX, aptX Low Latency, aptX HD, and LDAC (availability depends on the phone).

According to the product page, BLT-HD supports LDAC, aptX HD, aptX Lossless, aptX Classic, AAC, and SBC over Bluetooth 5.4.

With modern codecs such as aptX HD, aptX Lossless, or LDAC, most listeners will find the sound quality very close to CD-quality or better, especially in normal home-listening environments. For casual listening, the difference versus wired is often negligible.

Yes. That’s the main purpose. You connect the receiver to your existing speakers or amplifier via RCA or optical/coax and then stream audio to it from your phone, tablet, or computer over Bluetooth.

Any device that supports A2DP (the standard music streaming profile) should work—this includes most phones, tablets, laptops, and many smart TVs.

Yes. RCA connectors are usually found on home audio gear and often provide a cleaner, higher-quality signal than a typical 3.5 mm headphone/aux jack, especially on older equipment.

Typical real-world range is about 10–30 feet (3–10 m) indoors, depending on walls, interference, and the Bluetooth version/antenna design.The receivers with enhanced range and many users report strong coverage within a typical room or two.

Yes. That is a very common use case: connect the bludento’s RCA outputs to any line-level input (CD, AUX, TAPE, etc.) on your older amp or receiver to add Bluetooth streaming.

Yes, if the TV has a suitable audio output (RCA, optical, or coax). Connect that output to your existing stereo/AV system and stream to BluDento from your phone for music, or plug the BluDento into the amp and keep using the TV’s own outputs. For TV-to-headphones via Bluetooth, you would need a Bluetooth transmitter, not BLT-HD (because BLT-HD is a receiver only).

You can stream game audio from a console or PC into your stereo system via BLT-2, but if you connect Bluetooth headphones directly to the game source, you need a low-latency codec such as aptX LL at both ends to minimize lip-sync issues. BLT-2 itself is a receiver for home audio; it doesn’t transmit to headphones.

Most Bluetooth receivers can remember several paired devices (for example, phone + tablet + laptop), but typically only one device can stream at a time. To switch, stop playback on one device and connect from another.

Try these steps: 1. Clear Bluetooth pairing on your phone and turn Bluetooth off/on. 2. Power-cycle the unit (unplug and plug the USB power). 3. Move the phone closer and check for “BLT-HD” (or your custom ID) in the Bluetooth list. If the LED behavior or pairing state still seems abnormal after that, it may indicate a hardware problem and you should contact support.

1. Make sure your amplifier / powered speakers are set to the correct input (RCA, optical, or coax). 2. If using optical/coax, verify the amp is set to the correct digital input format and not muted. Test with another cable or switch from digital to RCA to see if the issue follows the cable/port or the receiver.

Common causes include interference, obstacles, or distance: * Keep the source device within typical Bluetooth range (ideally one room). * Avoid having the receiver hidden behind thick walls or metal racks. * Try temporarily turning off other 2.4 GHz devices (Wi-Fi routers close by, other Bluetooth devices) to see if it improves.