FAQ: Chill HV-316T TWS Earbuds

FAQ: Chill HV-316T TWS Earbuds

Download the latest Chill TWS HV-316T manual here!

Can I use Siri / Google Assistant voice control with the Chill TWS earbuds?:

Yes, double-click one of the headset buttons to enable Siri / Google Assistant (if supported by the host).


My new Chill TWS earbuds does not sound so good / Sounds a bit metallic:

Initially, the sound may appear a little metallic / sharp / limited bass etc., since the speaker membranes need to be excersised. It takes up to 20 hours of playback before reaching its maximum sound and depth. So have some patience - it's going to be worth it :-)


I have trouble charging:

The explanation should typically be found among the following:

- Always wipe charging pins on the headset and possibly the charging box before charging, as sweat / skin grease can prevent proper contact.

- The charger must NOT be fully discharged before charging the headsets!
The Charging Box battery can not be charged at the same rate as both headsets pull out the power. Thus, charging will just start and stop constantly. It will therefore either take a very long time and / or the indicators will just "disco" flash red and blue as error message. If the Charging Box is completely discharged, then fully charge (or at least 10 min.) before the headset is inserted for charging.

- Batteries and electronics are automatically calibrated during full cycles (full charge and discharge), but as there are 3 batteries at stake (charging box + 2x headset), you can get in situations where one or more batteries never really get any full cycles. Eg. the power consumption is not quite the same in both headsets. This can affect both the performance of the batteries as well as the actual battery capacity display, which then becomes inaccurate / misleading. In that case you can run all the batteries flat and then fully charge them afterwards, to ensure they get a full cycle each.

- Do not connect the Charging Box to constant power from the USB charger for many hours / overnight, but turn off / disconnect it after charging ends. Otherwise, the charging box / headset will be prevented to enter standby and will cause unnecessary tear and wear on electronics and batteries.


I can not link both earbuds together for Stereo use:

If you want to use the Chill HV-316T TWS earbuds together (stereo), they must first link with each other before connecting them to the phone / tablet:

1. Delete all previous Bluetooth pairings on the phone (HV-316T, HV-316T R), restart the phone, and disable Bluetooth.

2. Then, remove both earbuds from the charging box and shortly press BOTH headset buttons
  (they should say: Power on ... Your device is connected)*

3 Then activate Bluetooth on your phone and pair with the HV-316T.

* If they do not say: 'Power on... Your device is connected' when powered-on according to the procedure, but instead say 'Power on... Pairing', you have probably unintentionally unlinked them via different press combinations. In that case, they must first be linked as one set again: Turn on both, and after the "Power On" sound double-click quickly on both headsets. There will be beep sounds in both, and with one more click on both they will link again (say: Your device is connected). They should now be linked again! - Please remember: only a short press on both headsets is required to Power them on!


How do the LED indicators work on the Charging Box:

The LED indicators on the charging box show the 2 earbuds charging status: Lights Red when charging the earbuds and lights blue when no current is detected (typically charged). When no current is detected for a while, the LED lights will turn off if battery operated.

The LED indicator to the right near the USB connector also shows the charging status of the charging box itself (connected to USB charger). This will flash red when the charging box is charging, and will light constantly red when charged. Note that if both the charging box and the headset charge at the same time, the right LED will thus have both views at the same time, which may give a pinkish blur (if both blue and red are lit simultaneously).

If both LED's "disco" flashes red and blue, this error message is usually because the charging box itself is completely discharged! The 2 headsets will pull more power than the charging box's battery can be charged and deliver - and thus charging will just start and stop constantly. In that case, you will need to fully charge the charging box (or at least ~10 min.) without headset inside first.

See also the description and illustrations in the latest manual here.

I periodically experience outcomes in the sound:

Sound loss is unfortunately not quite uncommon for Bluetooth and is typically a result of signal disturbances.

The LEFT headset is the master and receives the signal from the phone and this is sent to the RIGHT headset. The forwarded signal will always be weaker than the primary signal as there is a natural signal loss here. In case of signal disturbances, the right headset will also be the first one to loose it. For the same reason, the left can not loose the sound without the right side as well.

Signal disturbances typically occur due to other more powerful wireless signals nearby (at 2.4Ghz), physical blockages of the signal from, eg. clothes, caps, bags, a relatively weak bluetooth signal from the host and/or combinations thereof.

Other 2.4Ghz signals can come from Wi-Fi routers, wireless bellows, baby alarms, other Bluetooth devices, DECT phones, wireless keyboard / mouse, etc. Likewise, many "China" products do not meet the radio regulations, thus jaming other products.

Signal disturbances can be difficult to overcome depending on the phone, usage pattern and the environment. The basic transmitting power is controlled by the sender and the antennas are built into the Bluetooth chipsets at both ends. So unfortunately, there is not really anything you can do to increase the Bluetooth transmit power and frequency. It is a fairly closed standard.

Often, however, one can get better signal by experimenting with which clothes / bag / pocket you keep the phone in, whether it is up or downside. Since the LEFT headset is the master in stereo, this headset should also have the best signal and shortest distance from the phone.

Especially in crowded / certain areas, there may be a lot of other wireless signals in the air, and this can generally be difficult to avoid. A disturbing signal in the air may / will dodge a weaker signal regardless of the range between the phone and the headset.

In general, Bluetooth outcomes are likely to occur (regardless of brand), as it is a short-range signal that is easily jammed. The problem is greater with TWS headsets, as there are two signals to be transmitted instead of one with regular bluetooth headphones / speakers. In order to potentially reduce the problem further, one has to go for products using technologies other than radio, eg. Near-field Magnetic Induction (NFMI). However, such headsets also cost 2-4 times more, and not necessarily a guarantee of getting rid of outcomes.

One should be aware that signal delays may also come from one's streaming, as the internet connection is not necessarily constant / stable when moving around.


The counterparty sometimes has trouble hearing me clearly during telephone calls:

Noisy surroundings and wind noise and the like can affect the sound quality, as the microphone is located in the ear and thus will easily catch the surrounding noise too.


Can I get the other party's voice in both headsets during phone calls:

during phone calls, you only hear the opposite party in one headset due to a limitation and/or feature in the Bluetooth chipset itself. Thus, less power is used and signal quality is increased.

In general, you will also tend to talk louder if you hear counterparty in both headsets. So this can also be annoying.

Publiceret den 11/07/2018 Bluetooth Speakers &..., FAQ 0 563

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