1. Introducció
Thank you for choosing the BlitzMax BM-LE505 Bluetooth 5.3 Transmitter Receiver. This versatile device allows you to effortlessly add Bluetooth functionality to your non-Bluetooth audio equipment, enabling wireless audio transmission (TX mode) or reception (RX mode). Enjoy high-quality, low-latency audio for a wide range of applications, from home entertainment to on-the-go listening.
This manual provides detailed instructions on how to set up, operate, and maintain your BM-LE505 to ensure optimal performance and a seamless audio experience.
2. Contingut del paquet
Si us plau, reviseu el paquet amb cura per assegurar-vos que hi hagi tots els elements:
- BlitzMax BM-LE505 Bluetooth Transceiver x1
- Cable de càrrega tipus C x1
- Cable d'àudio de 3.5 mm x1
- Bossa d'emmagatzematge x1
- Manual del producte x1

3. Especificacions
| Característica | Detall |
|---|---|
| Número de model | BM-LE505 |
| Marca | BlitzMax |
| Versió Bluetooth | 5.3 |
| Tipus sense fil | Bluetooth, 2.4G |
| Interfície | USB |
| Contingut | ÀUDIO |
| Capacitat de la bateria | 250 mAh |
| Temps de càrrega | Aprox. 2 hores |
| Durada de la bateria (mode RX) | Fins a 20 hores |
| Durada de la bateria (mode TX) | Fins a 12 hores |
| Rang de transmissió | Fins a 10 metres (33 peus) |
| Dimensions (L x A x A) | 5.5 cm x 3.5 cm x 1.2 cm (2.2 polzades x 1.4 polzades x 0.5 polzades) |
| Pes | 17.5 g |
| Supported CODECs | SBC, AAC, aptX, aptX Adaptive, aptX HD, aptX LL |
| Certificació | CE |


4. Disseny del dispositiu
The BM-LE505 features a simple and intuitive design for ease of use:

- TX/RX Mode Switch: Located on the side, slide to select Transmitter (TX) or Receiver (RX) mode.
- Un botó: Used for pairing and CODEC switching (for the first connected device).
- B Button:0 Used for pairing and CODEC switching (for the second connected device in dual pairing).
- Llums indicadores: Multiple LED indicators (Red, Green, Blue) to show status, mode, and active CODEC.
- Conector d'àudio de 3.5 mm: For connecting to audio input/output devices.
- Port USB-C: Per carregar el dispositiu.
5. Càrrega del dispositiu
The BM-LE505 has a built-in 250mAh battery, providing extended usage time.
- Connect the provided Type-C charging cable to the USB-C port on the BM-LE505.
- Plug the other end of the cable into a standard USB power adapter (not included) or a computer's USB port.
- The device will fully charge in approximately 2 hours.
- A full charge provides up to 20 hours of operation in RX (Receiver) mode and up to 12 hours in TX (Transmitter) mode.

6. Configuració i emparellament
6.1. General Connection Diagram
The BM-LE505 can function as both a transmitter and a receiver. Refer to the diagram below for typical connection scenarios:

6.2. Configuració del mode transmissor (TX)
Use TX mode to transmit audio wirelessly from non-Bluetooth devices (e.g., TV, PC, MP3 player) to Bluetooth headphones or speakers.
- Canvia al mode TX: Slide the TX/RX switch on the side of the device to the "TX" position.
- Connecteu-vos a la font d'àudio: Plug one end of the 3.5mm audio cable into the BM-LE505's audio jack and the other end into the audio output port of your non-Bluetooth device (e.g., PC, TV, MP3 player).
- Introduïu l'estat d'emparellament: Click either the A or B pairing button on the BM-LE505. The corresponding indicator light (A or B) will flash quickly, indicating it's in pairing mode.
- Vincula amb el dispositiu Bluetooth: Poseu els auriculars o l'altaveu Bluetooth en mode d'emparellament.
- Connexió correcta: Once connected, the A or B indicator light on the BM-LE505 will remain steadily lit. You can now enjoy wireless audio.

6.3. Configuració del mode receptor (RX)
Use RX mode to receive audio wirelessly from Bluetooth-enabled devices (e.g., smartphone, tablet, laptop) and play it through non-Bluetooth audio equipment (e.g., wired speakers, car stereo, wired headphones).
- Canvia al mode RX: Slide the TX/RX switch on the side of the device to the "RX" position.
- Connecteu-vos al dispositiu de sortida d'àudio: Plug one end of the 3.5mm audio cable into the BM-LE505's audio jack and the other end into the audio input port of your non-Bluetooth audio playback device (e.g., speaker, wired headphones, car stereo).
- Introduïu l'estat d'emparellament: Click either the A or B pairing button on the BM-LE505. The corresponding indicator light (A or B) will flash quickly, indicating it's in pairing mode.
- Vincula amb el dispositiu Bluetooth: On your smartphone, tablet, or laptop, search for Bluetooth devices and select "LE505" to connect.
- Connexió correcta: Once connected, the A or B indicator light on the BM-LE505 will remain steadily lit. You can now stream audio wirelessly.

7. Modes de funcionament i característiques
7.1. Dual Pairing Functionality
The BM-LE505 supports connecting to two Bluetooth devices simultaneously, enhancing your audio sharing experience.
- En mode TX: You can connect two Bluetooth headsets or two Bluetooth speakers. This allows two people to share audio signals from a single source, perfect for watching movies or gaming together.
- En mode RX: You can connect two Bluetooth source devices (e.g., two smartphones). You can then switch between the audio signals from these two devices at will, playing audio instantly from either source.

7.2. AptX Low Latency & CODEC Switching
The BM-LE505 supports various audio CODECs, including aptX Low Latency, to minimize audio delay, especially crucial for gaming and video synchronization.
- In TX mode, you can switch between multiple audio encodings.
- To switch the audio CODEC, double-click the corresponding A or B button.
- The device supports SBC, AAC, aptX, aptX Adaptive, aptX HD, and aptX LL (Low Latency).
- With aptX Low Latency, the audio delay is less than 40 milliseconds, providing an immersive experience.

7.3. Escenaris d'ús
The BM-LE505 is designed for a variety of applications:
- In-flight Entertainment: Connect to airplane audio systems to enjoy movies and music with your wireless headphones.

Figure 7.3.1: In-flight entertainment. - Jocs: Experience ultra-low latency and immersive sound effects by connecting to your gaming console or PC.

Figure 7.3.2: Gaming with low latency audio. - Home Cinema: Enjoy perfectly synchronized sound and image with CD-quality stereo high-definition audio on your TV.

Figure 7.3.3: Home cinema experience. - Car Entertainment: Add Bluetooth receiving capabilities to your car stereo for wireless music streaming from your smartphone.

Figure 7.3.4: Car entertainment. - Fitness: Enjoy dynamic music during workouts by connecting to gym equipment or portable audio players.

Figure 7.3.5: Fitness audio companion.
8. Solució De Problemes
If you encounter issues with your BM-LE505, please try the following steps:
- Sense energia: Assegureu-vos que el dispositiu estigui completament carregat. Connecteu-lo a una font d'alimentació amb el cable tipus C.
- No es pot emparellar:
- Make sure the BM-LE505 is in the correct mode (TX or RX) for your intended use.
- Ensure the BM-LE505 and your target Bluetooth device are both in pairing mode (indicator lights flashing).
- Bring the devices closer together (within 10 meters / 33 feet).
- Clear previous Bluetooth connections on both devices and try pairing again.
- Restart both the BM-LE505 and the target Bluetooth device.
- No Sound / Poor Sound Quality:
- Check if the 3.5mm audio cable is securely connected to both the BM-LE505 and the audio source/output device.
- Ensure the volume levels on both the BM-LE505 and the connected audio devices are adjusted appropriately.
- Verifiqueu que s'ha seleccionat l'entrada/sortida d'àudio correcta al dispositiu font/sortida.
- Try switching the audio CODEC (double-click A or B button in TX mode) to see if it improves sound quality.
- Reduïu les interferències allunyant-vos d'altres dispositius sense fil (encaminadors Wi-Fi, microones).
- Connexió intermitent:
- Ensure the devices are within the 10-meter (33-foot) transmission range.
- Avoid physical obstructions between the BM-LE505 and the connected Bluetooth device.
- Torneu a emparellar els dispositius.
9. Cura i Manteniment
- Mantingueu el dispositiu sec. Eviteu l'exposició a la humitat, la pluja o els líquids.
- No intenteu desmuntar ni modificar el dispositiu. Això anul·larà la garantia i pot causar danys.
- Netegeu el dispositiu amb un drap suau i sec. No utilitzeu productes químics agressius ni netejadors abrasius.
- Guardeu el dispositiu en un lloc fresc i sec, allunyat de temperatures extremes.
- When not in use for extended periods, charge the device at least once every three months to prolong battery life.
10. Garantia i Suport
The BlitzMax BM-LE505 comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package or contact your retailer for specific warranty terms and conditions.
For technical support or further assistance, please contact the BlitzMax customer service team through your purchase platform or the official BlitzMax weblloc.