Rhagymadrodd
Diolch am brynuasing the Docooler GT77 BT5.4 2-in-1 Wireless Audio Adapter. This device functions as both a Bluetooth transmitter and receiver, allowing you to wirelessly stream audio to and from various devices. It features BT5.4 technology, NFC quick pairing, TF card playback, and RGB ambiance lighting. Please read this manual carefully before use to ensure proper operation and to maximize your experience with the product.
Cynnyrch Drosview
The Docooler GT77 is a versatile audio adapter designed to enhance your audio connectivity. It can upgrade non-Bluetooth devices to be Bluetooth-compatible, offering seamless audio streaming. The device supports multiple audio input/output options including 3.5mm AUX and RCA.

Image: The Docooler GT77 adapter connected to a speaker and a smartphone, illustrating its use for upgrading wired speakers to wireless.
Nodweddion Allweddol:
- Ymarferoldeb 2-mewn-1: Easily switch between Bluetooth Transmitter (TX) and Receiver (RX) modes.
- Bluetooth 5.4: Provides stable and high-quality audio transmission with a range of up to 10 meters.
- NFC Quick Pairing: Simplifies connection with NFC-enabled devices.
- Chwarae Cerdyn TF yn ôl: Supports direct music playback from a TF card (up to 64GB).
- Multiple Audio Interfaces: Includes 3.5mm AUX and RCA ports for broad compatibility.
- RGB Ambiance Lighting: Customizable lighting to enhance your listening environment.

Image: The Docooler GT77 adapter shown with its various cables, including 3.5mm AUX and RCA, highlighting its rich interface compatibility.
Gosod
Cynnwys y Pecyn:
- 1 x Docooler GT77 BT Audio Adapter
- Cebl Sain 1 x 3.5mm
- 1 x Cebl RCA
- 1 x Cebl Pŵer Math-C
- 1 x Llawlyfr Defnyddiwr
Pweru ar y Dyfais:
- Connect the provided Type-C power cable to the adapter's USB C port.
- Plug the other end of the Type-C power cable into a 5V USB power source (e.g., USB wall adapter, computer USB port).
- The device will power on automatically, indicated by the RGB lighting.
Cyfarwyddiadau Gweithredu
Mode Switching (Transmitter/Receiver):
The Docooler GT77 features a single button to switch between Transmitter (TX) and Receiver (RX) modes.
- Gwasgwch y M/☀ button briefly to toggle between TX and RX modes.
- The device's indicator light will change to reflect the current mode.

Image: A diagram illustrating the receive (RX) and launch (TX) modes, showing how the adapter connects to various devices like phones, tablets, TVs, speakers, and headphones.
Modd Derbynnydd (RX):
In RX mode, the adapter receives Bluetooth audio from your smartphone, tablet, or other Bluetooth-enabled device and outputs it to a wired speaker, amplifier, or car stereo system.
- Ensure the adapter is in RX mode.
- Connect the adapter's AUX ALLAN or RCA ALLAN port to your non-Bluetooth audio device (e.g., speaker, amplifier) using the appropriate cable.
- On your smartphone or tablet, enable Bluetooth and search for "GT77" in the list of available devices.
- Select "GT77" to pair. Once paired, audio from your device will stream wirelessly to your connected speaker.

Image: The Docooler GT77 adapter in Receiver (RX) mode, connected to a traditional speaker, receiving audio wirelessly from a smartphone.
Modd Trosglwyddydd (TX):
In TX mode, the adapter transmits audio from a non-Bluetooth device (like a TV or PC) to Bluetooth headphones or speakers.
- Ensure the adapter is in TX mode.
- Connect your audio source (e.g., TV, desktop computer, projector) to the adapter's AUX YN or RCA YN port using the appropriate cable.
- Rhowch eich clustffonau neu siaradwr Bluetooth yn y modd paru.
- The adapter will automatically search for and connect to nearby Bluetooth audio devices. Once connected, audio from your source will be transmitted wirelessly.

Image: The Docooler GT77 adapter in Transmitter (TX) mode, connected to a television, sending audio wirelessly to a user's headphones for private listening.
NFC Quick Pairing:
For NFC-enabled devices, pairing is even faster.
- Ensure NFC is enabled on your smartphone or tablet.
- Hold your NFC-enabled device close to the NFC area on the Docooler GT77 adapter.
- Cadarnhewch y cais paru ar eich dyfais.
Note: NFC pairing is primarily for Receiver (RX) mode.

Image: A smartphone displaying an NFC connection prompt, positioned near the Docooler GT77 adapter, demonstrating the NFC quick pairing feature.
Chwarae Cerdyn TF yn ôl:
The adapter supports direct music playback from a TF (MicroSD) card.
- Insert a TF card (up to 64GB, not included) loaded with MP3, FLAC, WMA, MAV, or APE audio files into the TF card slot on the adapter.
- Pwyswch yn hir y M/☀ button to switch between wireless and TF card playback modes.
- Use the previous/next track buttons on the adapter to navigate your music.

Image: The Docooler GT77 adapter with a TF card being inserted into its dedicated slot, highlighting the TF card playback functionality.
RGB Ambiance Lighting:
The adapter features RGB lighting that can be adjusted to suit your preference. Refer to the device's controls for specific RGB adjustment options (e.g., short press M/☀ button for color cycle, long press for off/on).
Cynnal a chadw
- Cadwch y ddyfais yn sych. Gall lleithder niweidio'r cylchedau mewnol.
- Peidiwch â gwneud y ddyfais yn agored i dymheredd eithafol.
- Glanhewch y ddyfais gyda lliain meddal, sych. Peidiwch â defnyddio cemegau llym na glanedyddion.
- Osgoi gollwng neu orfodi'r ddyfais i effeithiau cryf.
Datrys problemau
Dim pŵer:
- Ensure the Type-C power cable is securely connected to both the adapter and a working 5V power source.
- Rhowch gynnig ar addasydd pŵer USB neu borthladd USB gwahanol.
Cannot Pair/Connect:
- Gwnewch yn siŵr bod yr addasydd yn y modd cywir (RX ar gyfer derbyn, TX ar gyfer trosglwyddo).
- Ensure your Bluetooth device (for RX mode) or Bluetooth headphones/speaker (for TX mode) is in pairing mode.
- Move the devices closer to each other (within 10 meters).
- Cliriwch hanes paru Bluetooth ar eich dyfais a cheisiwch baru eto.
- If using NFC, ensure NFC is enabled on your phone and you are tapping the correct area.
Dim Sain:
- Check all audio cable connections (3.5mm AUX, RCA) are secure and correctly plugged into the input/output ports.
- Gwnewch yn siŵr bod y gyfrol ar yr addasydd a'r ddyfais sain gysylltiedig wedi'i throi i fyny.
- Verify that the adapter is successfully paired and connected to the audio source/receiver.
- If using TF card, ensure the card is inserted correctly and the adapter is in TF card playback mode.
Ansawdd Sain Gwael/Ymyrraeth:
- Lleihewch y pellter rhwng yr addasydd a'r ddyfais Bluetooth gysylltiedig.
- Avoid physical obstructions (walls, large objects) between the devices.
- Move away from other wireless devices that might cause interference (e.g., Wi-Fi routers, microwaves).

Image: A visual representation of the Docooler GT77's 10-meter transmission range, showing stable signal coverage within a typical home environment.
Manylebau
| Rhif Model | ZRV0656844287655XH |
| Fersiwn Bluetooth | v5.4 |
| Protocolau Bluetooth | A2DP, AVRCP |
| Pellter Gweithredu | Hyd at 10 metr (ardal agored) |
| Cefnogaeth NFC | Oes |
| Ymateb Amlder | 10Hz - 20kHz |
| Cymhareb Arwydd-i-Sŵn | > 90dB |
| Cymorth Cerdyn TF | Uchafswm 64GB (heb ei gynnwys) |
| TF Card Formats | MP3, FLAC, WMA, MAV, APE |
| Codecs Sain | SBC |
| Porthladd Codi Tâl | USB Math-C |
| Mewnbwn Voltage / Cyfredol | DC 5V 500mA |
| Lliw | Du |
| Dimensions (ϕ x H) | 7.3 cm x 2.2 cm (2.87 mewn x 0.86 mewn) |
| Pwysau | 44g |

Delwedd: O'r brig i lawr view of the Docooler GT77 adapter, showing its compact dimensions of 7.3 cm diameter and 2.2 cm height.
Gwarant a Chefnogaeth
Am wybodaeth am y warant a chymorth technegol, cyfeiriwch at y ddogfennaeth a ddarparwyd gyda'ch pryniant neu cysylltwch â'ch manwerthwr. Cadwch eich prawf prynu ar gyfer hawliadau gwarant.