Boult Audio UFO

Name: Boult Audio UFO
Brand: Boult Audio
SKU: 91307

Manufacturer: Boult Audio

The Boult Audio UFO are true wireless earbuds designed for everyday use without the hassle of cables. Built around an in-ear fit, they carry an IPX5 sweat-resistant rating, making them a reasonable companion for workouts and commutes alike. The charging case extends the total listening time significantly, and the overall form factor is kept compact with no neckband or wingtips involved.

On the technical side, the UFO uses a 13 mm driver unit covering a frequency range of 20 Hz to 20,000 Hz, with passive noise reduction helping to block out ambient sound. Connectivity runs through Bluetooth 5.3 with a maximum range of 10 meters and a quoted audio latency of 45 ms. The earbuds charge via USB Type-C and support fast charging, reaching a full charge in around 1.5 hours, while the case holds enough power for up to 40 hours of total use. A quad-microphone setup with noise-canceling capability handles calls, and onboard controls, voice prompts, and a mute function round out the feature set.

Pros

The charging case extends total playback to 40 hours, making it practical for extended use without frequent recharging
Fast charging support means less time waiting before the earbuds are ready to use
A quad-microphone setup with noise-canceling capability helps with call clarity in varied environments
IPX5 sweat resistance makes the earbuds suitable for physical activity
A mute function and headset capability add utility for calls and voice communication
A travel bag is included in the box, offering a convenient way to carry and store the earbuds

Cons

No active noise cancellation means sound isolation depends entirely on the physical fit of the ear tips
Wireless charging is not supported, so the case must be plugged in to recharge
None of the advanced Bluetooth audio codecs are supported, including AAC, LDAC, and aptX variants
There is no in-ear detection, so music does not pause automatically when the earbuds are removed
The find-device feature is absent, making it harder to locate misplaced earbuds
Fast pairing and NFC pairing are not available, requiring manual Bluetooth setup each time

Who is this for?

These earbuds are a practical fit for users who prioritize all-day battery endurance, given the combined 40-hour case capacity and fast charging support that minimize downtime. The IPX5 sweat resistance makes them a reasonable choice for gym sessions and active outdoor use, where moisture exposure is a regular factor. Those who frequently take calls on the go will also find value in the quad-microphone noise-canceling setup, mute function, and headset capability, which together support clear voice communication without needing a separate device.

Who is this NOT for?

Users who require active noise cancellation for focused listening in loud environments — such as open offices, flights, or busy commutes — will find the passive-only isolation insufficient for that purpose. Audiophiles or those who rely on high-fidelity audio codecs like LDAC, aptX HD, or AAC for lossless or near-lossless wireless playback will be limited by the absence of any advanced codec support. Additionally, users who frequently misplace small accessories and depend on a find-device feature to locate their earbuds will find that functionality entirely missing here.

Design:

Fit	In-ear
Ingress Protection (IP) rating	IPX5
water resistance	Sweat resistant
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✕
has stereo speakers	✓

The Boult Audio UFO adopts a true wireless, in-ear design with no cables, neckband, or wingtips, keeping the form factor minimal and straightforward. It carries an IPX5 ingress protection rating, meaning it can handle sweat and light moisture without issue. Stereo speakers are present, while the absence of wingtips means the fit relies entirely on the ear tips themselves for stability and seal.

Sound quality:

has active noise cancellation (ANC)	✕
has passive noise reduction	✓
driver unit size	13 mm
lowest frequency	20 Hz
highest frequency	20000 Hz
has a neodymium magnet	✕

The Boult Audio UFO uses a 13 mm driver unit and covers a frequency range of 20 Hz to 20,000 Hz, spanning the full standard audible spectrum. It relies on passive noise reduction to limit ambient sound rather than active noise cancellation, which is not supported. The earbuds do not feature a neodymium magnet in their driver construction.

Power:

Battery life	8 hours
Battery life of charging case	40 hours
charge time	1.5 hours
has wireless charging	✕
has a battery level indicator	✓
has a rechargeable battery	✓

The Boult Audio UFO offers 8 hours of battery life per charge, with the accompanying charging case adding enough capacity to bring the total up to 40 hours. The rechargeable battery takes 1.5 hours to reach a full charge, and a battery level indicator is included so remaining power can be checked at a glance. Wireless charging is not supported, so the case relies solely on a wired connection to recharge.

Connectivity:

has fast pairing	✕
Has USB Type-C	✓
Bluetooth version	5.3
has LDAC	✕
has LDHC	✕
has aptX Adaptive	✕
has aptX Low Latency	✕
has aptX HD	✕
has aptX	✕
has aptX Lossless	✕
audio latency	45 ms
has aptX Voice	✕
maximum Bluetooth range	10 m
supports Bluetooth pairing using NFC	✕
Can be used wirelessly	✓
has AAC	✕

The Boult Audio UFO connects wirelessly via Bluetooth 5.3, with a maximum range of 10 meters and a quoted audio latency of 45 ms. It does not support fast pairing or NFC-based pairing, and advanced audio codecs — including AAC, LDAC, LDHC, aptX, aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, and aptX Voice — are all absent. The USB Type-C port is present for charging purposes, though the device itself operates entirely wirelessly during use.

Features:

has ambient sound mode	✕
has in/on-ear detection	✕
has find device feature	✕
Supports fast charging	✓
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	✕

The Boult Audio UFO supports fast charging and can function as a headset, with controls handled through a panel placed on the device itself rather than an in-line cable control. Voice prompts are included to assist with navigation, and a mute function is available during calls. A travel bag comes in the box for storage and portability. On the other hand, the earbuds lack ambient sound mode, in-ear detection for auto-pausing music, a find-device feature, and a body temperature sensor.

Microphone:

number of microphones	4
has a noise-canceling microphone	✓

The Boult Audio UFO is equipped with a quad-microphone setup, and the configuration includes noise-canceling microphone capability to help reduce unwanted background sound during calls and voice input.

Final Verdict

The Boult Audio UFO presents a straightforward true wireless earbud option built around practical everyday utility rather than advanced audio features. Its 40-hour combined battery endurance with fast charging support stands out as its most compelling strength, complemented by IPX5 sweat resistance and a quad-microphone setup that makes it reasonably capable for active users and regular call handling. That said, the absence of advanced audio codecs, active noise cancellation, and smart features like in-ear detection or device finding means it caters to a specific, no-frills segment of the wireless earbud market. For users whose priorities align with battery stamina, basic call performance, and physical resilience over sonic refinement or feature depth, the Boult Audio UFO delivers a functionally coherent package within those defined boundaries.