Compatibility & scope
Based on Hisense's English e-manual whose PDF metadata title is E-Manual MT9603 VIDAA U9 NA/SA (the manual prints no date or version; the PDF was created in 2025), downloaded from Hisense Chile (hisense.cl), where it is hosted for the 58Q6QV, 40Q4SV and 50A4NV. These are model codes from Hisense Chile's site; equivalent models elsewhere and other TV brands that run VIDAA may differ. The manual says Bluetooth may not be available on some models, countries or regions, that compatibility issues may occur with some Bluetooth devices, and it names no compatible headphones or speakers. It allows two Bluetooth audio devices to be connected at once but doesn't say whether both play at the same time. It doesn't say whether Lip Sync applies to Bluetooth output, and it doesn't describe unpairing. How to put headphones or a speaker into pairing mode is in that device's own manual. Documentation reviewed; no TV hardware tested.
In this guide
Pair them in the Bluetooth menu, then choose Bluetooth Speaker
To listen to a VIDAA TV through Bluetooth headphones or a Bluetooth speaker, pair them under Settings → Connection → Bluetooth → Bluetooth Device, then set Settings → Sound → Audio Output to Bluetooth Speaker. The setting is called Bluetooth Speaker even when you’ve connected headphones; the manual lists no separate option for Bluetooth headphones.
This is from Hisense’s 2025 VIDAA U9 e-manual, which says Bluetooth isn’t available on every model. It names no compatible headphones or speakers and warns that some Bluetooth devices may have compatibility problems, so AirPods and other headphones use the same steps but aren’t guaranteed to work.
Before you start
- Charge the headphones or speaker, and have their manual handy: you’ll need to put them into pairing mode, and how you do that depends on the device.
- Keep them close to the TV, with nothing in between, while you pair.
- The TV can have one Bluetooth remote and two Bluetooth audio devices connected at once. If two audio devices are already connected, disconnect one before adding another. The manual doesn’t say where on the TV to do that; switching one of them off or out of range is a reasonable first try, but it isn’t documented.
Pair the headphones or speaker
- Press Home on the remote and open Settings (the gear icon).
- Go to Connection → Bluetooth and set Bluetooth to On.
- Put the headphones or speaker into pairing mode, following their manual.
- On the TV, open Settings → Connection → Bluetooth → Bluetooth Device.
- Find the headphones or speaker by name and select it.
The manual says the device then connects to the TV automatically.
Send the TV’s sound to them
- Press Home and open Settings.
- Go to Sound → Audio Output.
- Choose Bluetooth Speaker.
The TV’s sound should now play through the headphones or speaker. To switch back to the TV’s own speakers, choose TV Speaker in the same menu.
Keep the TV speakers playing as well
If you want headphones for yourself while others listen to the TV’s speakers, Hisense’s manual describes playing both at once:
- Bluetooth headphones and TV speakers: pair the headphones as above, then choose TV Speaker (not Bluetooth Speaker) in Settings → Sound → Audio Output.
- Bluetooth speaker and TV speakers: pair the speaker, then go to Settings → Connection → Bluetooth → Bluetooth Device → Change Device Type and set it as BT Headphone. Then choose TV Speaker in Audio Output.
The manual says these options may not exist on some models.
If they won’t pair or keep dropping out
The TV doesn’t find them, or won’t connect
- Check that Bluetooth is On in Settings → Connection → Bluetooth.
- Put the headphones or speaker back into pairing mode and check that Bluetooth is working on them.
- Switch the TV’s Bluetooth off and on again in the same menu, then try again.
- If two audio devices are already connected, disconnect one first (the manual gives no TV menu for this; see Before you start).
- Bring them closer to the TV and remove anything between them.
If they still won’t connect, the device may not be compatible with the TV. Hisense says compatibility issues can occur and doesn’t list which devices work.
The sound cuts out or the connection drops
- Stay within 10 metres of the TV, with no obstacles in between.
- Charge the headphones or speaker, or check they’re switched on.
- Hisense says other electrical appliances using the same frequency range as Bluetooth can interfere. Switch off or move away nearby wireless equipment while you test.
The sound is out of step with the picture
The TV has a Lip Sync setting under Settings → Sound → Audio Output Settings. Hisense says the options there depend on the model and the Audio Output selected, and doesn’t say whether Lip Sync works with Bluetooth output. If it’s available, adjust it until speech matches lips. A weak signal from the TV source can also cause a delay.
If none of this works, note the TV model, the headphone or speaker model, and what you tried, and contact Hisense support for your country.
Common questions
Can two people use Bluetooth headphones at the same time?
The manual says two Bluetooth audio devices can be connected at the same time. It doesn’t say whether both play the TV’s sound at once, so this isn’t confirmed.
Can I play music from my phone through the TV speakers instead?
Yes, that’s a separate feature called Music Sharing, under Settings → Connection → Bluetooth → Music Sharing. Turn on your phone’s Bluetooth, select the TV in the phone’s Bluetooth list and play music on the phone. Audio Output must be set to TV Speaker.
Can I use a soundbar over Bluetooth?
The manual’s Bluetooth steps include soundbars, and they use the same Bluetooth Speaker output. For a wired soundbar connection, see the VIDAA soundbar guide.
Sources & scope
Pages printed 43–44, 60–61, 92, 96, 98 (PDF 44–45, 61–62, 93, 97, 99)
View sourcePDF page = printed page + 1. Consulted: Connecting Bluetooth Devices (Connect a Bluetooth Device, Listen to the Audio through Bluetooth Devices, Listen to your Mobile Device Audio through the TV Speaker), Select Speakers (Bluetooth headphones or speaker with the TV speaker, Change Device Type), Audio Output Settings Setup (Lip Sync), Sound Issues (picture and sound delay), and the Troubleshooting entries for a TV that can't connect to Bluetooth headphones or speakers and an unstable connection. Rendered PDF 44 and 61 checked. The same text is in the hisense.cl e-manuals hosted as User-Manual-40Q4SV.pdf (PDF 43–44, 59–60, 91, 95, 97) and User-Manual-50A4NV.pdf (PDF 46–47, 62–63, 94, 98, 100). The manual's front matter lists no models, date or VIDAA version: model names come from the hosted file names, and VIDAA U9 NA/SA and 2025 from the PDF metadata title and creation date (May 2025; uploaded to hisense.cl in November 2025).
These instructions are based on manufacturer documentation. They have not been device-tested for this guide.
Based on Hisense's English e-manual whose PDF metadata title is E-Manual MT9603 VIDAA U9 NA/SA (the manual prints no date or version; the PDF was created in 2025), downloaded from Hisense Chile (hisense.cl), where it is hosted for the 58Q6QV, 40Q4SV and 50A4NV. These are model codes from Hisense Chile's site; equivalent models elsewhere and other TV brands that run VIDAA may differ. The manual says Bluetooth may not be available on some models, countries or regions, that compatibility issues may occur with some Bluetooth devices, and it names no compatible headphones or speakers. It allows two Bluetooth audio devices to be connected at once but doesn't say whether both play at the same time. It doesn't say whether Lip Sync applies to Bluetooth output, and it doesn't describe unpairing. How to put headphones or a speaker into pairing mode is in that device's own manual. Documentation reviewed; no TV hardware tested.