Rode Wireless Micro Ultra-compact USB-C Wireless Microphone - Black 2.4 GHz Wireless Technology Measuring 6 metres

Measuring 6 metres

2 AA batteries and a velcro strip so you can secure it to a mic stand

The  keyboard has a stable

and more on the user guide

When it comes to performance versus size

Rode Wireless Micro Ultra-compact USB-C Wireless Microphone - Black 2.4 GHz Wireless Technology Measuring 6 metresThe Wireless Micro is a pocket sized solution for capturing pristine audio with your smartphone. It connects directly to your phone with no cables required and features two clip on transmitters with in built microphones, so you can get recording in seconds. Intelligent GainAssist technology will ensure your audio is perfect in any environment and with up to 21 hours of battery life using the included charging case, it is the ideal grab and go