KoolTunes secondary unit won’t go into KoolSync searching mode
Once the secondary unit is powered on, make sure that the light is flashing. To put KoolTunes in "KoolSync searching”, quick-press the Bluetooth button.
Older KoolTunes is not KoolSync pairing with new KoolTunes
KoolTunes is currently not backward compatible. If you purchased a KoolTunes between May 2022 and March 2024, you likely own a first-generation unit that is not compatible with second-generation KoolTunes featuring KoolSync released in March 2024. Generation 2 KoolTunes have a “KoolSync Enabled” label/sticker on the back control panel.
Button functions on new KoolTunes are different than older KoolTunes
All buttons are physically the same between the first and second generations of KoolTunes. However, the Bluetooth button on the second-generation (KoolSync enabled) KoolTunes has a dual function: Long-pressing this button enables Bluetooth pairing while quick-pressing the button enables KoolSync pairing.
The solid blue light indicates KoolTunes is in KoolSync mode but units are not synced
If you enable KoolSync but take no further action, after some time the feature may time out and your KoolTunes coolers may no longer be synced — even if the lights are still displaying solid blue.
The audio coming from both KoolTunes speakers sounds a little different from each other
This is to provide an immersive stereo sound experience. While in KoolSync true wireless stereo mode, KoolTunes #1 (primary unit) will play the right audio channel (serving as the right speaker) and KoolTunes #2 (secondary unit) will play the left audio channel (serving as the left speaker).
The Bluetooth or KoolSync connection seems weak/unstable
To strengthen the Bluetooth and KoolSync connection, turn the units so the speakers are facing away from each other (and the control panels facing each other). Also, please be aware that as the KoolTunes battery power decreases so will the strength of the Bluetooth and KoolSync connections. When one or both KoolTunes are fully charged, the wireless connections will work to their full capabilities.
The Bluetooth connection is being disrupted; audio cuts in and out
Bluetooth connection may be disrupted by the following: If the cooler is filled with ice and water, if there is a physical object (including a person) between the coolers, or if there is an extreme distance between the unit and the connected smart device. For best Bluetooth and KoolSync connections, make sure the KoolTunes units have less ice/water inside, are positioned within a 30-foot range of each other and the connected smart device and any unnecessary physical objects between them are removed.
