The batteries usually last about 4 hours before they need to be charged by the case that comes included. The case itself can charge the earbuds 4 or 5 times before it needs to be charged itself. The battery life is decent, but could definitely be better. 4 hours is just enough to get me through to my lunch break – at which time I return them to the charging case. The 1 hour of charging is usually enough to get me through to the end of the day (although I frequently have to take the out when I receive phone calls, or have to talk to co-workers). JBL Endurance Peak 2 have a battery level indicator, an indicator alerts you when the earbuds has a low battery. Its lights indicate the charging state of your device and case. APTCHIP APT32F101H6SV microcontroller. APT32F101 is a low-cost, high-performance series of single-chip microcomputers, using the 32-bit single-chip core developed by C-Sky, mainly used in home appliances and portable devices. | 2. JBL FREE II earbuds teardown As JBL’s first true wireless earphones, JBL FREE, the first upgrade product after a lapse of 3 years, JBL FREE II has both a continuation and a new change in design compared to the previous generation product. The charging case is more compact, the earphones continues the overall shape of the previous generation, but the texture is richer. The ring indicator light matches the JBL brand LOGO, which is very recognizable. The battery life of the charging case is given by the manufacturer, and the JBL Endurance Peak 2's case has a charge of 24 hours. A charging case with more battery hours enables you to recharge your earbuds on the go multiple times before having to recharge the case itself.

Jbl Endurance Peak 2 Vs. Jbl A Review By Comparison of the Jbl Endurance Peak 2 Vs. Jbl

Build quality is cheap (not surprising, but troubling nonetheless)--see the photo where my right earbud fell apart, while on a call. Four LED indicators of different colors, the edge of the motherboard is edged by vias to prevent interference.I will continue to use these during my next few workout to ensure they perform as expected and will adjust the review as appropriate. Thus far - I'm happy with them and believe they are worth the price.

JBL Live Free 2 TWS | True wireless Noise Cancelling earbuds

Opening the box, you have a charger/carry case, the two ear pieces, a charging cable and the instructions. There are three ear tip covers included and two gel sizes that actually fill the ear cavity when placed over the ear bud, so there are plenty of ways to make sure you have a great fit with these ear buds. JBL Endurance Peak 2's highest frequency is at 20,000Hz, high-frequency response indicates how well an audio device makes high human frequencies and if it makes any adjustments to the signal while at it. The JBL Live Free 2 offer great noise cancellation and call quality, both of which can be important features. Listening to music is fine, but it could be better. Still, this is a quality set of earbuds for the price. In addition, BES2300 also supports external heart rate sensors, acceleration sensors and other external sensor devices and eMMC flash memory, which can achieve the purpose of playing music on external storage devices. BES2300 can output sound to headphones and home audio, and can also record from an external microphone. On that note, there is not great way to tell what the battery level is at. The earbuds won’t tell you but the case does have an indicator but it’s for the case not the buds.

One of my favorite bonus things, and this sounds silly, but the face created when these are in the charging case is beyond cute. The case is strong and solid, charges them multiple times, and allows you to see them without having to open the case to see they are in there. The case has magnets to pull the headphones into place and that they won't fall around once in there. They have a cool white LED ring around the JBL logo while in the case, and the LED charging status lights give a subtle human face look to the charging case when you close the translucent lid while charging. Don't know if that was intentional to 'humanize' the product, but a nice touch none the less.