will this support an audible format?

Audible is a subscription service. The files are embedded with DRM protection and they do not let you control the files as if you owned them. However, there are a lot of tutorials how to convert the Audible AAX files to MP3 files from Audible with third party software. This is mostly due to digital rights issue. Here are few links to help: https://www.videosolo.com/tutorials/convert-audiobook-to-mp3.html https://www.tuneskit.com/audiobook-tips/convert-audible-aa-aax-to-mp3.html http://www.macsome.com/convert-to-mp3/convert-aax-to-mp3-mac.html Another source for FREE audio-books is your local library in conjunction with the Libby-Overdrive app. https://www.overdrive.com/apps/libby/ https://help.overdrive.com/en-us/0004.html I hope that helps. If you have more questions, please email us at support@h2oaudio.com and we'll help you get your audio book on the SONAR memory.

Will these connect to an iPhone by blutooth?

Since Bluetooth range under water is only few inches - you will need to keep the source very close to the headphones. We would recommend using an smart watch like Apple Watch and tuck that under the swim cap. If you want to listen to your iPhone that is on the side of the pool - we would recommend the STREAM2. https://www.amazon.com/dp/B078TQJKNJ Please take a look at this article that outlines some good options for you: https://h2oaudio.com/blogs/news/spotify-while-swimming

My firmware is 2112V1.1. If there’s a firmware update, how do I get it?

This is the latest version of firmware.

How good is the sound quality?

Sound quality on mp3'sis quite good, actually even better underwater!!m BUT the bluetooth doesn't really work b/c bluetooth doesn't transmit through water in general.

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Description

🌊 Swim Beyond Limits with Sound That Moves You

DIVE DEEP LISTEN CLEAR - IPX8 waterproof rating lets you submerge up to 12 feet without missing a beat.
BONE CONDUCTION BRILLIANCE - Experience crisp, uninterrupted sound underwater with advanced bone conduction tech plus earplugs for enhanced clarity.
MUSIC ON THE GO PHONE FREE - 8GB internal storage holds thousands of tracks so you can swim without your phone weighing you down.
ENDURANCE THAT MATCHES YOURS - Up to 7 hours of battery life keeps your playlist flowing through long training sessions or open water swims.
SECURE FIT MEETS SPORTY STYLE - Integrated clips attach seamlessly to your goggles for a comfortable, no-slip fit during every stroke.

The H2O Audio Sonar is a premium waterproof Bluetooth headphone designed specifically for swimmers. Featuring an IPX8 rating for submersion up to 12 feet, 8GB of onboard MP3 storage, and bone conduction technology, it delivers crystal-clear audio underwater without the need for a phone. With secure goggle clips, 7-hour battery life, and compatibility with multiple audio formats, it’s engineered to elevate your aquatic workouts and adventures. Backed by a 2-year Go Beyond Promise, it’s the ultimate companion for serious swimmers who demand both performance and style.

Specifications

Headphones Jack	3.5 mm Jack
Model Name	Audio Sonar
Connectivity Technology	Wireless
Wireless Communication Technology	Bluetooth
Included Components	Bone Conduction Headphones, MP3 Player, Earplugs, Clips for Goggles
Age Range (Description)	Adult
Material	Plastic
Specific Uses For Product	Sport
Charging Time	7 Hours
Recommended Uses For Product	Swimming
Compatible Devices	Smartphones, Tablets
Control Type	Touch Control
Cable Feature	Detachable
Water Resistance Level	Waterproof
Frequency Range	20 Hz - 20,000 Hz
Customer Package Type	Package
Net Quantity	1.0 count
Style	Sporty
Control Method	Touch
Number of Items	1
Cable Length	36 Inches
Controller Type	wireless
Battery Life	7 Hours
Audio Driver Type	Bone Conduction Driver
Bluetooth Range	3 Feet
Earpiece Shape	ear hook
UPC	850000259188
Special Feature	Lightweight
Global Trade Identification Number	00850000259188
Manufacturer	H2O Audio
Model	BCH-MP8-BT_AMAZ_VC
Batteries	1 Lithium Polymer batteries required. (included)
Item model number	BCH-MP8-BT_AMAZ_VC
Memory Storage Capacity	8 GB
Digital storage capacity	1 GB
Special Features	Lightweight
Microphone format	Built-In
Voltage	10 Microvolts
Power Source	Battery Powered
Batteries Included	Yes
Batteries Required	Yes
Battery cell composition	Lithium Ion
Cable feature	Detachable
Wireless Type	Bluetooth
Form Factor	Open Ear
Includes Rechargeable Battery	Yes
Item Weight	141 g

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