Factors to consider while buying true wireless earbuds:
IPX Rating - IP stands for Ingress Protection and usually denotes the level of protection against water, dust, etc. It also helps you understand whether the earbuds are weather-resistant, waterproof, or dust resistant.
Comfort - One thing you will need to bear in mind is that everyone's ears are different, which means that whether or not a pair of earbuds are comfortable tends to come down to personal preference.
Battery Life - This is a factor that is important to consider when going for True Wireless Earbuds. Some True Wireless Earbuds last longer than others, and the number of hours you get can vary depending on what other features you have enabled. True Wireless Earbuds come with cases that hold charging capability and allow you to recharge the earbuds on the move.
Codecs - Bluetooth codecs are of importance as audio quality varies from different codecs, and all of them have different latencies, different degrees of energy efficiency, and different levels of stability. These might be important considerations, depending on your use case. If you’re going wireless, invest in earbuds that support a high bitrate codec like LDAC, aptX or AAC.
Active Noise Cancellation - This is a feature that can come in handy if you want a more private listening experience, and some of the top pairs boast excellent noise-cancelling.
Additional Features - Other features you might want to consider include, touch controls and voice control via personal assistants like Amazon Alexa, Google Assistant and Siri. Some TWS earbuds also offer features like Mono Mode.