What's the difference between this and the life 2?

Compared with Life 2, the Life Q20 better/greatly reduces ambient noises by adopting Hybrid Active Noise Canceling technology and adding 2 more (4 in total) built-in ANC microphones. Also, our engineers fine-tuned the sound and speaker to bring our customers a more enjoyable listening experience.

Does using the aux cable work, if the headphones aren't charged? I have a set where this doesn't work, so it is a legitimate question.

They've changed how this product works between 2019 and now, clearly. The newer editions of this model do NOT have ANC while in AUX mode, which is absolutely ridiculous. Current user manual for this edition states: "Plugging in an audio cable will automatically switch to AUX mode, and Bluetooth mode and ANC will turn off". While old one posted in another answer states ANC will operate while in AUX mode. Definitely returning these now.

They use internal and external microphones to cancel out the ambient sound. it relies on microphones to seek out ambient noises and then cancel them out. But where it’s common for most active noise-canceling headphone designs opt to place microphones solely on the outside or solely on the inside of the earcups, hybrid noise-canceling headphones have both. Generally, active noise-canceling headphones with internal microphones tend to sound great, but have less-than-optimal noise-cancellation powers. This is because the microphones hear when the listener hears (since the mics are on the inside), and they know exactly what sounds to block out without polluting the actual music that is attempting to reach your ears. Unfortunately, this approach typically can’t handle louder noises and higher frequencies, however, so the noise-cancellation isn’t as good. With active noise-canceling headphones that have external microphones, the opposite is true. Since the mics are on the outside, they tend to block out a wider range of frequencies and can do better with generally louder sounds. The downside is that they typically create more “anti-noise” and this can negatively impact sound quality.

Does it have aux input

Yes, you can use it in wired mode since the headphones come with an AUX cable. We can use the headphones in two ways--- in bluetooth mode or in wired mode(with an AUX cable).

Noise Control	Active Noise Cancellation
Frequency Response	40000 Hz
Headphones Jack	3.5 mm Jack
Model Name	Soundcore Life Q20
Connectivity Technology	Wireless
Wireless Communication Technology	Bluetooth
Included Components	Cable, Ear Cushions, Headband
Age Range (Description)	Adult
Material	PC + ABS
Specific Uses For Product	Home, Travel
Charging Time	3 Hours
Recommended Uses For Product	Calling, Listening to music
Compatible Devices	Cellphones, Desktops, Laptops, Tablets
Control Type	Media Control
Cable Feature	Without Cable
Item Weight	0.58 Pounds
Water Resistance Level	Not Water Resistant
Customer Package Type	FFP
Net Quantity	1.0 Count
Style	Micro
Control Method	Touch
Number of Items	1
Battery Life	40 Hours
Audio Driver Type	Dynamic Driver
Bluetooth Range	10 Metres
Bluetooth Version	5.0
Earpiece Shape	Rounded
UPC	194644022037
Special Feature	Noise Cancellation
Manufacturer	Anker
Model	A3025
Product Dimensions	19.5 x 18 x 7.8 cm; 263.08 g
Batteries	1 Lithium Polymer batteries required. (included)
Item model number	A3025
Special Features	Noise Cancellation
Microphone format	Built-In
Power Source	Battery
Batteries Included	Yes
Batteries Required	Yes
Battery cell composition	Lithium Polymer
Cable feature	Without Cable
Maximum Operating Distance	15 Metres
Includes Rechargeable Battery	Yes
Item Weight	263 g

Anker Soundcore Life Q20 Hybrid Active Noise Cancelling Headphones, Wireless Over Ear Bluetooth Headphones, 40H Playtime, Hi-Res Audio, Deep Bass, Memory Foam Ear Cups, for Travel, Home Office

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