Can you swim with the JBL Endurance Race 2?
The earbuds are rated IP68, meaning 100% waterproof and dustproof, able to survive immersion deeper than one metre, in fresh water as well as in seawater. The case, however, is only IPX2: it can handle rain, but not a dive.
How long do they last with noise cancelling switched on?
Up to 10 h from the earbuds alone, with noise cancelling on, versus 12 h with it off. The advertised 48 h is the total with the case, noise cancelling off: 10 h is indeed the figure to remember for everyday use.
How long do they last on calls?
Up to 6.5 h with noise cancelling on, 7 h with it off. The microphone and voice processing use more power than simple playback. In an emergency, 10 minutes of charging give back 4 h of listening, and a full charge takes 2 h.
What is in the box of the Endurance Race 2?
A pair of earbuds, three sizes of ear tips, a stabiliser, a USB Type-C charging cable, the charging case, a warranty booklet and a quick start guide. Since the cable is included, nothing else is needed.
Do the earbuds stay in during a run?
They rely on ergonomic Twistlock wings, a design that improves both the seal in the ear and stability during movement. Each earbud weighs 6.4 g, or 12.8 g for the pair, in a 30.1 × 26.4 × 18.9 mm form factor.
What does the JBL app's Sport mode do?
It matches noise cancelling, Ambient Aware mode and the equaliser to the intensity of your workout, by choosing one of the six presets or creating your own. After exercise, a Relax mode offers five soundscapes, from waves to a crackling fire.
Can you hear traffic without taking the earbuds out?
Yes, that is what Smart Ambient is for: it lets you adjust how much outside noise you want to hear, up to being able to hold a conversation without taking the earbuds out. Active noise cancelling does the opposite by filtering out unwanted noise.
How do calls perform when running outdoors?
Two beamforming microphones on each earbud, four in total, pick up your voice while reducing ambient noise. The stated result holds up even in a busy park in slightly windy weather — the use case these earbuds are designed for.
Is pairing quick on Android as well as on PC?
Yes, on both: these earbuds support Google Fast Pair for Android devices and Microsoft Swift Pair for Windows computers, each with a single tap. Multipoint connection also lets you keep two devices connected at once.
How good are the 6.8 mm drivers?
It is a compact diameter, offset by a high sensitivity of 104 dB at 1 kHz at 16 ohms and a 20 Hz to 20 kHz frequency response, for Pure Bass sound. Sound pressure is capped at 94 dB, and the maximum operating temperature is 45 °C.
Is the case easy to carry in a gym bag?
It weighs 41.1 g and measures 69.7 × 43.1 × 30.5 mm, with a 600 mAh reserve — enough to recharge the earbuds three times, each holding 70 mAh. Given its IPX2 rating, it is best kept sheltered from heavy downpours.
Are these JBL earbuds new and under warranty?
Yes, new and genuine, with the invoice serving as the warranty document for
1 year. Full specifications are given in the manufacturer's
datasheet.
