Sounds great, looks nice and does what he should. Small drawback is the whistling power supply, which is clearly noticeable in standby. Solution is a different power supply, which is not easy to find but because the voltage of 5.8V. So I tried a 5V power supply (barrel connector 3.5 / 1.4 mm, plus internal) and lo and behold, the radio is in standby and is calm.