TRUEFREE specializes in ergonomic wireless audio devices, including open-ear headphones and earbuds designed for sports, comfort, and situational awareness.
DOĞRU ÜCRETSİZ is a consumer electronics brand dedicated to redefining the wireless audio experience through innovative, ergonomic designs. With a philosophy centered on "True Freedom," the brand focuses on producing open-ear air conduction headphones and wireless earbuds that allow users to enjoy high-fidelity sound while staying aware of their surroundings.
Popular product lines such as the O1, O2, and F series feature advanced Bluetooth connectivity, long battery life, and lightweight, secure-fit designs ideal for running, cycling, and daily commutes. Committed to quality and affordability, TRUEFREE combines directional sound transmission technology with large dynamic drivers to deliver immersive audio without the discomfort of traditional in-ear devices.
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To reset most TRUEFREE models (like the DS1 or O2), place both earbuds into the charging case. While the lid is open (or closed depending on the specific model), press and hold the button on the case or the touch panels on the earbuds for 10 seconds until the indicator light flashes red (or red and white) 3 times.
First, pair the headphones with Device A. Once connected, turn off Bluetooth on Device A to put the headphones back into pairing mode. Connect to Device B. Finally, turn Bluetooth back on for Device A and select the headphones to reconnect. They will now be connected to both.
Ensure the charging case has power. Check that the earbuds are correctly seated in the case. Use a microfiber cloth or cotton swab with a small amount of rubbing alcohol to clean the charging contacts on both the earbuds and the case casing to remove any dirt or residue.
Yes, the dedicated TRUEFREE app allows you to customize EQ settings, update firmware, control touch functions, and check battery levels for compatible models like the O1, O2, and DS1.