I bought a similar Koomus handlebar phone mount where you just slide the sides in and out to fit his phone hold, and it had a Schuko plug for the headphone jack. It's much better and safer with elastic corners. Only time will tell how durable the rubber bands are. Overall an improved design and no need for a Schuko plug. The clamps are pretty tight for road and regular cycling, but I wouldn't recommend them for trail or mountain biking.
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