MODEL INSTRUCTIONS

Vip Pro Bluetooth T-shirt instructions

Wear the T-shirt to position its induction system, then pair GB-T01. The electronic garment must stay dry and must not be washed.

Before you start

Check the selected kit and its parts
Control or stateWhat it does
Audio pathPhone Bluetooth → induction system in the worn T-shirt → selected induction Vip receiver.
MicrophoneOn the collar; keep the garment and electronics dry.
Listed powerRechargeable T-shirt unit and separate 337/SR416SW receiver cell; listed use time up to 3 hours, depending on use.
Listed kitElectronic T-shirt, selected Vip receiver, two 337/SR416SW cells, USB cable and EU charger.

Check the chosen option and your order’s contents before using or replacing parts. Optional bundles are included only when selected.

First check

Check the faint red/blue pairing lights, GB-T01 connection and the worn T-shirt’s position.

Black shirt and a conceptual Bluetooth phone audio connection.
Phone Bluetooth → T-shirt induction system → Vip receiver

1. Fit the selected receiver cell

  1. Check that your selected Vip receiver uses a 337/SR416SW cell. MegaMini uses LIR640 and has a separate guide.
  2. Unscrew the black receiver cap. Fit one cell with the positive, marked side facing up, then refit the cap straight.
  3. Fit the cell shortly before use. It drains while fitted, even when no audio is playing; remove it after use.

2. Inspect the receiver and plan safe removal

Inspect the receiver outside the ear. Background hiss can occur with an induction receiver; it does not prove that playback or calls work. Test the actual audio path.

Keep the sound opening clear. If it is blocked, ask model support about cleaning; do not probe it with a needle or alter the internal spring.

Do not force a receiver deeper. Keep its retrieval thread accessible and stop if fit or removal is not easy.

Closed beige Vip receiver, extraction thread and two external 337 cells, one shown as a spare.
Charge the electronic garment; keep it dry and remove the receiver cell after use.

3. Wear and pair the electronic T-shirt

  1. Keep the electronic T-shirt dry. Do not wash it.
  2. Hold the button for at least 6 seconds until the faint red and blue lights flash; check in a darker area if they are hard to see.
  3. Select GB-T01 on the phone. A paired phone can reconnect automatically while Bluetooth is on.
  4. Wear the T-shirt to put the induction system in its intended position. Hold the button to switch off; red flashes twice.

4. Test the collar microphone and controls

  1. Play a track at low volume with the T-shirt worn, then test a call.
  2. Keep the microphone on the collar clear.
  3. One click answers a call or pauses/plays recordings. Press the − button twice to redial the last number in the call log.
  4. Hold the main button for power/pairing and control volume on the phone. If a phone/app does not support a function, use its on-screen controls.

5. Charge without washing the garment

  1. Use the supplied cable and a supply no higher than 5 V / 1 A.
  2. Red means charging; blue means complete. Listed charging time is about 1 hour and listed operation about 3 hours, depending on use.
  3. Switch off, remove the receiver safely and remove its cell. Keep the garment and its electrical parts dry.
  1. End the call or stop playback, then switch off or disconnect the transmitter as described for this model.
  2. Use an accessible retrieval thread with your fingers only. If removal is difficult, stop repeated attempts and get medical help.
  3. Once the receiver is safely out, unscrew its cap and remove the cell. Store the receiver and cell separately.

Fix a failed check

Music works but calls do not

Confirm GB-T01 is connected and selected as the phone’s call-audio output. Test a call separately from music playback. Try another phone if the same check fails.

No audio or low audio

Check the selected receiver cell, positive-side orientation and straight cap. A cell left fitted can be flat even if the kit has not been used.

Test the audio source and the transmitter’s position separately. Restart the source/transmitter and try a known-working cell or another phone when the same check still fails.

Start with low volume. If the receiver makes a loud noise outside the ear, remove the cell and check orientation and cap alignment. Do not bend the internal spring; contact support if it persists.

A button function is unavailable

Use the controls described above, then try the phone’s on-screen controls or another app/phone. Some functions depend on the phone and app; do not change the receiver cell to troubleshoot a phone control.

The microphone is not heard

Keep the collar microphone clear. Restart the transmitter and phone.

Test the kit microphone with Voice Recorder on Android or Voice Memos on iPhone, then make a separate call test. Check that the app/call uses the connected kit. Try another phone if the same microphone check fails.

Receiver removal is difficult

Use the accessible retrieval thread with your fingers only. Stop if it is not easy to remove; do not keep trying with tweezers or other tools. Get medical help for a retained object, and immediate help for a battery in the ear.

Care and safety

Do not push a receiver deeper or put tools or cotton buds into the ear canal. If removal is difficult, stop repeated attempts and get medical help. Severe pain, bleeding or discharge needs urgent care; a battery in the ear needs immediate help.

Mayo Clinic: ear foreign-object guidance · NHS: earwax advice

Keep the device, cables and adapters dry. If they get wet, unplug safely and allow them to dry fully; do not use an external heat source such as a hairdryer or microwave.

Stop using damaged equipment. Use the supplied or specified power parts, keep cables/adapters indoors and do not handle connected equipment during a thunderstorm.

Use is discouraged with a pacemaker, hearing aid, other electronic medical device or a hearing condition. Seek suitable professional advice before use in those circumstances.

Follow local rules for use, privacy and disposal. This product is not a toy. Ask CooMax for the documentation and warranty terms that apply to your selected product and country.

Get model-specific help

Tell us your selected Vip receiver, phone/app, whether GB-T01 connects and the T-shirt unit's pairing or charging lights. Include the result with the T-shirt worn and collar microphone uncovered, the separate 337/SR416SW cell check and the first failed playback or call test.

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