Yes, the speakers are compatible with your monitor as they have a 3.5 mm jack input that can be connected to the 3.5 mm jack output of your monitor. This allows you to hear the sound from your monitor via these speakers. The speakers have a 3.5 mm AUX input that works with any device with a headphone socket, including monitors with a 3.5 mm output.
Contact Digitec support if you still have a warranty or Logitech directly if the warranty has expired. No-one here will probably be able to help you, as we are customers and not technicians.
Yes, in principle, but the sound should be more than modest and the TV should have a 3.5 mm sound output. It also doesn't look very appealing when there are cheap speakers on the left and right. The TV sound should be better. A soundbar is much better suited for good TV sound.
Something like this sounds much better and is also reasonably affordable.
Sharp HT-SB147 (1 x 150 W, 2.0 channel)
If only one of the devices is running at a time and never at the same time, it would be easiest to install a 3.5mm jack crossover if both the PC and PS have a 3.5mm output. Digitec has one on offer, under the name: StarTech 3.5mm Audio Jack Y Cable - Headset Splitter - 1 x 3.5mm (female) 2 x 3.5mm (male).
A bit expensive at 14.80, but I haven't found an alternative at Digitec, maybe it's cheaper elsewhere.
Basically everything is included, i.e. a jack cable for connection to the computer. The two speakers are permanently connected with an approx. 100 cm long cable. You don't need more for these simple speakers 😊
The cable is fixed and max. 1.20m long. As mentioned, the plug goes into the green connector on the front or on the back of the main board or sound card.
The speakers are slightly larger at the front than at the back. Front 8.5 cm wide, 15.2 cm high. Rear 7.5 cm wide, 14 cm high. They are 7.2 cm thick at the bottom and 6.6 cm thick at the top (depth).
The dome has a diameter of 3.6 cm or 4.6 cm (dome alone or with surround).
I confirm, they are small desktop speakers with only a 3.5mm jack plug to connect to the computer and an input for external source in jack still and a headphone jack