EarFun OpenJump

Name: EarFun OpenJump
Brand: EarFun
SKU: 1072

Manufacturer: EarFun

The EarFun OpenJump are true wireless earbuds built around an open-ear design, making them a practical option for users who want to stay aware of their surroundings while listening. They come with wingtips for a more secure fit and support stereo playback without any cables or neckband. IPX7 waterproofing means they can handle submersion, not just splashes, which adds a level of durability suited to active use.

On the technical side, the OpenJump use a 14.2 mm driver covering a frequency range of 20 Hz to 20,000 Hz. Battery life reaches 11 hours per charge, with the charging case extending total playback to 31 hours; fast charging is supported via USB-C with a full charge taking around 1.5 hours. Connectivity includes Bluetooth with fast pairing, a 10-meter range, and multipoint support for two devices simultaneously. A four-microphone array with noise cancellation handles calls, and the earbuds also include a mute function, voice prompts, and a 50 ms audio latency figure.

Pros

IPX7 waterproof rating means the earbuds can handle full submersion, not just sweat or rain
Wingtips are included to help keep the earbuds secure during physical activity
The charging case extends total playback to 31 hours, reducing how often you need to find a power source
Fast charging is supported, which helps minimize downtime when the battery runs low
Multipoint connectivity allows simultaneous pairing with two devices
A four-microphone array with noise cancellation helps maintain clearer call quality

Cons

Open-ear design provides no passive noise isolation, making them unsuitable for noisy environments where audio privacy matters
No active noise cancellation is available
Wireless charging is not supported, requiring a cable for every top-up
Maximum Bluetooth range is limited to 10 meters
No high-resolution audio codec support — LDAC, aptX, AAC, and LE Audio are all absent
There is no find-device feature, which can be inconvenient if an earbud is misplaced

Who is this for?

The EarFun OpenJump are well-suited to users who spend time outdoors or exercising, thanks to their IPX7 waterproof rating and wingtips that help keep the earbuds in place during movement. The open-ear design makes them a practical choice for people who need to remain aware of their surroundings — such as runners or cyclists — without giving up audio playback. Those who frequently switch between two devices will also benefit from multipoint connectivity, and the combined 31-hour battery life with fast charging support suits users who need reliable, extended use throughout the day.

Who is this NOT for?

Users who require noise isolation or active noise cancellation — such as commuters, office workers, or anyone trying to focus in loud environments — will find the open-ear design and complete absence of ANC a significant drawback. Audiophiles or those who prioritize high-resolution audio will be limited by the lack of advanced codecs like LDAC, aptX, or AAC. The 10-meter Bluetooth range and absence of a find-device feature also make these earbuds a poor fit for users who need extended wireless reach or frequently misplace small accessories.

Design:

Fit	Open-ear
Ingress Protection (IP) rating	IPX7
water resistance	Waterproof
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✓
has RGB lighting	✕
has stereo speakers	✓
has UV light	✕
Has a display	✕

The EarFun OpenJump feature an open-ear fit with wingtips included to help keep them in place during use. They are true wireless earbuds with no cables or neckband, and they deliver stereo audio through dual speakers. Water resistance is rated at IPX7, meaning the earbuds are fully waterproof. They do not include RGB lighting, a display, or a UV light.

Sound quality:

has active noise cancellation (ANC)	✕
has passive noise reduction	✕
driver unit size	14.2 mm
lowest frequency	20 Hz
highest frequency	20000 Hz
supports spatial audio	✕
has Dolby Atmos	✕
has Dirac Virtuo	✕
has a neodymium magnet	✕

The EarFun OpenJump use a 14.2 mm driver and cover a frequency range of 20 Hz to 20,000 Hz. They do not include active noise cancellation or passive noise reduction, and there is no support for spatial audio, Dolby Atmos, or Dirac Virtuo processing. The driver does not use a neodymium magnet.

Power:

Battery life	11 hours
Battery life of charging case	31 hours
charge time	1.5 hours
has wireless charging	✕
Has a solar power battery	✕
has a battery level indicator	✓
has a rechargeable battery	✓

The EarFun OpenJump are equipped with a rechargeable battery that provides 11 hours of playback, with the charging case extending the total to 31 hours. A full charge takes 1.5 hours, and a battery level indicator is included to keep track of remaining power. Wireless charging and solar charging are not supported.

Connectivity:

has fast pairing	✓
Has USB Type-C	✓
has LDAC	✕
has LDHC	✕
has Bluetooth LE Audio	✕
has aptX Adaptive	✕
has aptX Low Latency	✕
has aptX HD	✕
has aptX	✕
has aptX Lossless	✕
audio latency	50 ms
has aptX Voice	✕
has Auracast	✕
maximum Bluetooth range	10 m
supports Bluetooth pairing using NFC	✕
Can be used wirelessly	✓
has AAC	✕

The EarFun OpenJump connect wirelessly with fast pairing support and a maximum Bluetooth range of 10 meters, while USB Type-C is used for wired charging. Audio latency is rated at 50 ms, and the earbuds do not support any aptX variants — including aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, or aptX Voice — nor do they include LDAC, LDHC, AAC, Bluetooth LE Audio, or Auracast. NFC pairing is also absent.

Features:

has ambient sound mode	✕
has in/on-ear detection	✕
has find device feature	✕
Supports fast charging	✓
multipoint count	2
can read notifications	✕
has a mute function	✓
can be used as a headset	✓
control panel placed on a device	✓
Has voice prompts	✓
travel bag is included	✕
Has an in-line control panel	✕
Has a temperature sensor	✕
Has a built-in camera remote control function	✕

The EarFun OpenJump support fast charging and can connect to two devices simultaneously via multipoint pairing. They can be used as a headset and include a mute function, voice prompts, and a control panel placed on the device itself, though there is no in-line control panel. The earbuds do not offer ambient sound mode, in-ear detection, a find-device feature, or the ability to read notifications, and there is no travel bag, temperature sensor, or camera remote shutter function included.

Microphone:

number of microphones	4
has a noise-canceling microphone	✓

The EarFun OpenJump include a four-microphone array with noise cancellation, designed to help reduce background sound during calls and voice use.

Final Verdict

The EarFun OpenJump are a purposeful pair of open-ear true wireless earbuds built around outdoor and active use. Their IPX7 waterproofing, secure wingtip fit, and 31-hour total battery life with fast charging make them a dependable companion for users who prioritize awareness of their environment and extended listening sessions. That said, the open-ear design and absence of any noise isolation or advanced audio codecs mean they are best understood as a lifestyle and activity-focused product rather than an all-purpose audio solution. Users who match that profile — particularly those who move between two devices and value durability — will find the OpenJump a coherent and well-specified option for their needs.