3.3V with 5.0V power supply perfectly compatible. | 3.3V with 5.0V signal perfectly compatible. | Operating temperature : -40 ℃ ~ + 85 ℃. | With RXD, TXD signal lights. | Transmission distance up to kilometers.
Input: 100-240 V AC 50/60 Hz | Output: 3V, 1A | Cord Length: 100 cm (about 3.2 ft) | If the radio uses it: Please check that the DC jacks (mostly 3.5 mm * 1.35 mm) can not be used | https://www.amazon.com/dp/B073VKRNF9 This version is suitable for 3.5MM * 1.35MM DC interface radio