Recommendations for smoke/co alarms that are interconnected AND have a voice option on some of them

As the title says really. We've got standard smoke alarms in the kitchen, hall and on the landing (appropriate for the room, mains powered) but I'd like to put some in the kids' bedrooms that they may actually respond to if there was a fire during the night, and a voice alarm is much better for that. I've found a voice alarm that does both smoke and co but it isn't interconnected and I'd prefer it to be as I'm aware that a fire is most likely to start in the kitchen downstairs and could take a while to activate an alarm in an upstairs bedroom with a closed door. I've found a couple of smart ones that may do the hob but I've not looked at them properly because they're not good brands. I don't need to replace the existing alarms, just supplement so battery powered from a different make would be fine.

What I need: A connected system Voice alarms for kids' rooms Any form of siren for the hall/landing/kitchen (our current ones are interconnected so they'll work fine to alert adults, it's just so they'd pick up a fire downstairs and alert upstairs quickly) A reputable brand that has whatever the good accreditations are Battery powered or hybrid - we can replace the existing alarms if this makes sense - these are hardwired - but the new ones for bedrooms will have no way to be wired in so they need to be on batteries

What would be nice: If it's smart so I can test them all at once from my phone, that's a bonus but not a requirement A Co alarm in the same system would he nice but I can just get a separate one of them (our current one has gone missing, don't know how)

TIA