MR280 Bluetooth 5.0 Audio Receive & Decoder Manual

MR280 is a device that has Bluetooth on the playback end, such as: mobile phone Bluetooth transmission to MR280, MR280 device uses the corresponding audio cable to connect with your power amplifier or active speaker or wired headset, and connect the active speaker or power amplifier or wired headset without Bluetooth The headset is upgraded to a wireless Bluetooth connection to transmit audio.

Features

• Bluetooth chip: QCC5125
• Decoding chip: ES9018K2M
• Bluetooth protocol: LDAC/AptX adaptive/AptX-HD/Aptx-LL/Aptx/AAC/SBC
• Bluetooth sampling rate: 44.1khz/48khz/96khz (the highest)
• Bluetooth sampling bits: 16bit/24bit (the highest)
• Bluetooth version: version 5.1
• Transmission distance: 20 meters in the open without interference
• Op amp chip: TI LM4562 (factory default), users can replace and upgrade by themselves
• Input interface: Bluetooth receiving antenna
• Output interface: optical fiber + coaxial + RCA + 3.5mm headphone jack, all interfaces output sound at the same time
• Power supply voltage: DC 9V or 12V/1A
• Product size: 98*88*33mm
• Product weight: 0.2kg

Interface panel diagram:

Instructions

1.After the power is connected, the power switch on the front panel must be turned up to turn on the machine.After the power is turned on, the power indicator (PWR) is red and steady, and the Bluetooth indicator (BT) is blue and flashing quickly.

2. The name of the Bluetooth device is:  MR280.

3. Description of the status of the Bluetooth indicator (BT): Fast flashing: Standby not connected. Slow flashing: After pairing and connecting but not playing. The breathing light flashes slowly or normally off: After pairing and connecting and is playing

4. If you want to use advanced protocols such as aptx or LDAC, you must first confirm whether the phone supports it. Android phones first enter “Settings”, find the “Developer Options” mode, and enter the drop-down to view the support status of the phone. Click “Bluetooth Audio Decoder” to select. If you want to select a sampling rate, click “Bluetooth Audio Sampling Rate” to select. To select the number of sampling bits, click “Bluetooth Audio Sample Quantization Bits” to select.