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Boult Audio C Charge specifications and in-depth review

Boult Audio C Charge

Manufacturer: Boult Audio

The Boult Audio C Charge are neckband wireless earbuds designed for users who want extended listening sessions without frequent recharging. They sit in the ear with wingtips for added stability and connect via Bluetooth 5.3, offering a cable-free experience through a neckband form factor. An in-line control panel makes it easy to manage playback and calls without reaching for a phone, and multipoint connectivity allows simultaneous pairing with two devices at once. The earbuds can also function as a headset and include voice prompts and a mute function for everyday communication use.

On the technical side, the C Charge uses a 10 mm driver and covers a frequency range of 20 Hz to 20,000 Hz with passive noise reduction. There is no active noise cancellation, and audio codecs are limited to standard Bluetooth transmission — LDAC, AAC, and the aptX family are all absent. Audio latency is rated at 50 ms, and the maximum wireless range reaches 10 meters. The earbuds charge via USB-C with fast charging support, and the battery delivers up to 30 hours of playback. A single noise-canceling microphone handles voice input, and the IPX5 rating provides reliable sweat resistance. The package includes a one-year warranty, though no travel bag is provided.

Pros
  • 30-hour battery life allows for extended use without frequent recharging
  • Multipoint connectivity lets the earbuds stay paired with two devices at the same time
  • Both an in-line control panel and an on-device control panel are available, offering flexible playback management
  • Fast charging support reduces downtime when the battery needs topping up
  • Wingtips are included to help keep the earbuds in place during physical activity
  • IPX5 rating provides solid sweat resistance for active use
Cons
  • Active noise cancellation is not available, leaving passive noise reduction as the only form of sound isolation
  • No advanced audio codecs are supported, including LDAC, AAC, and the full aptX family
  • Only a single microphone is present, which may limit call clarity in demanding environments
  • Ambient sound mode is absent, so there is no way to let in environmental audio without removing the earbuds
  • The neckband design means a cable is always present, which some users may find less convenient than a fully wireless setup
Who is this for?

The Boult Audio C Charge is a solid fit for users who prioritize long listening sessions, as the 30-hour battery life means the earbuds can last through multiple days of use without needing a charge. The neckband design with wingtips and IPX5 sweat resistance makes them a practical choice for gym-goers and people who work out regularly, where a secure fit and moisture protection matter. The multipoint connectivity also suits those who switch frequently between two devices, such as a phone and a laptop, without wanting to manually re-pair each time.

Who is this NOT for?

Users who are sensitive to background noise will find the C Charge lacking, as there is no active noise cancellation and passive isolation is the only line of defense against ambient sound. Those who expect higher-quality wireless audio transmission will also be disappointed, since advanced codecs like LDAC, AAC, and aptX are entirely absent. The neckband form factor makes these earbuds a poor match for anyone who prefers a fully cable-free experience, and the single microphone setup may not satisfy users who rely heavily on voice calls in noisy environments.

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 C Charge use an in-ear fit and come with a neckband design, meaning they are not true wireless and retain a cable connecting the two earbuds. Wingtips are included to help keep them secure during use, and stereo speakers are present on both sides. The earbuds carry an IPX5 rating, making them sweat resistant and reasonably suited for active wear.

Sound quality:

has active noise cancellation (ANC) ✕
has passive noise reduction ✓
driver unit size 10 mm
lowest frequency 20 Hz
highest frequency 20000 Hz
has a neodymium magnet ✕

The C Charge uses a 10 mm driver unit and covers a frequency range of 20 Hz to 20,000 Hz. Passive noise reduction is present, helping to block some ambient sound through the physical fit of the earbuds, though active noise cancellation is not available. The drivers do not use a neodymium magnet in their construction.

Power:

Battery life 30 hours
has wireless charging ✕
has a battery level indicator ✓
has a rechargeable battery ✓

The C Charge is equipped with a rechargeable battery that delivers up to 30 hours of battery life on a single charge, making it well suited for extended use between top-ups. A battery level indicator is included so users can keep track of remaining power. Wireless charging is not supported, so the earbuds must be charged through a wired connection.

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 50 ms
has aptX Voice ✕
maximum Bluetooth range 10 m
supports Bluetooth pairing using NFC ✕
Can be used wirelessly ✓
has AAC ✕

The C Charge connects wirelessly via Bluetooth 5.3 with a maximum range of 10 meters and an audio latency of 50 ms. Charging is done through a USB-C port. Advanced audio codecs are not on offer — LDAC, LDHC, AAC, and the full aptX family including aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, and aptX Voice are all absent. Fast pairing and NFC pairing are likewise not supported, so connections are made through the standard Bluetooth pairing process.

Features:

has ambient sound mode ✕
has in/on-ear detection ✕
has find device feature ✕
Supports fast charging ✓
multipoint count 2
has a mute function ✓
can be used as a headset ✓
control panel placed on a device ✓
warranty period 1 years
Has voice prompts ✓
travel bag is included ✕
Has an in-line control panel ✓
Has a temperature sensor ✕

The C Charge supports multipoint connectivity for up to 2 devices simultaneously and can be used as a headset for calls, with a mute function and voice prompts included. Controls are accessible both through an in-line panel on the cable and via a control panel on the device itself. Fast charging is supported, and the earbuds come with a one-year warranty. Ambient sound mode, in-ear detection, a find device feature, and a body temperature sensor are not available, and no travel bag is included in the package.

Microphone:

number of microphones 1
has a noise-canceling microphone ✓

The C Charge features a single noise-canceling microphone, which helps reduce background sound when taking calls or using voice input.

Final Verdict

The Boult Audio C Charge is a neckband wireless earbud that makes a clear case for users who need reliable, long-duration listening without the complexity of a fully true wireless setup. Its 30-hour battery life paired with fast charging and dual-device multipoint support give it a practical edge for everyday use across work and fitness contexts. That said, the absence of active noise cancellation and high-quality audio codecs means it caters to a fairly straightforward use case rather than audiophiles or those in demanding acoustic environments. For users who value endurance, a secure fit, and hassle-free multi-device pairing over advanced sound features, the C Charge delivers a functionally coherent package worth considering.