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Lenovo EA400 specifications and in-depth review

Lenovo EA400

Manufacturer: Lenovo

The Lenovo EA400 is a pair of true wireless earbuds designed around an open-ear fit, making them a straightforward option for those who want to stay aware of their surroundings while listening. They come with a carrying case included and support voice prompts, a mute function, and on-device controls, covering the basics for everyday use. The earbuds carry an IPX4 rating, meaning they hold up against sweat and light moisture during workouts or commutes.

On the connectivity side, the EA400 uses Bluetooth 5.4 with a maximum wireless range of 10 meters and charges via USB Type-C. Battery life sits at 6 hours per charge, with the case extending total playback to 18 hours, and fast charging is supported to reduce downtime. Audio is handled by a 13 mm driver covering a 20 Hz to 20,000 Hz frequency range, while the 4-microphone array with noise-canceling technology supports headset use for calls, rounding out a feature set focused on practical daily functionality.

Pros
  • The open-ear fit allows users to remain aware of their surroundings during use
  • A 4-microphone array with noise-canceling technology supports clearer voice calls
  • Fast charging reduces time spent waiting before the earbuds are ready to use
  • The charging case extends total playback to 18 hours, making it practical for longer periods away from a power source
  • A travel bag is included, offering basic protection when carrying the earbuds
  • Bluetooth 5.4 and USB Type-C provide a reasonably current set of connection standards
Cons
  • No active noise cancellation or passive noise isolation, which limits use in noisy environments
  • The 10-meter Bluetooth range is relatively short and may restrict movement from a connected device
  • No advanced audio codecs such as LDAC, aptX, or AAC are supported, limiting audio quality options
  • Wireless charging is not available, requiring a wired connection for every charge
  • No in-ear detection means music does not automatically pause when the earbuds are removed
  • Ambient sound mode is absent, removing any option to control how much environmental audio passes through
Who is this for?

The Lenovo EA400 is well suited to users who prioritize situational awareness during everyday activities like commuting, working at a desk, or light exercise, thanks to its open-ear design and IPX4 sweat resistance. The 4-microphone noise-canceling array makes it a practical choice for people who frequently take calls or join voice meetings throughout the day. Those who want a straightforward wireless listening experience without managing complex audio settings will also find the feature set approachable, and the included travel bag adds a degree of portability for users on the move.

Who is this NOT for?

Users looking for immersive audio in noisy environments will find the EA400 lacking, as it offers neither active noise cancellation nor passive noise isolation, making it unsuitable for commutes on loud transit or open office settings with significant background noise. The absence of advanced audio codecs like LDAC or aptX means it is not a good fit for audiophiles or users with high-fidelity streaming setups who expect lossless or high-resolution audio transmission. The short 10-meter Bluetooth range and lack of wireless charging also make it less appealing for users who need flexible, cable-free convenience in larger spaces or during intensive physical activity.

Design:

Fit Open-ear
Ingress Protection (IP) rating IPX4
water resistance Sweat resistant
has no wires or cables ✓
are neckband earbuds ✕
wingtips included ✕
has RGB lighting ✕
has stereo speakers ✓
has UV light ✕
Has a display ✕

The Lenovo EA400 uses an open-ear fit and operates as a fully true wireless design with no cables or neckband connecting the two earbuds. It features stereo speakers but does not include wingtips, RGB lighting, a UV light, or a display. For durability during physical activity, the earbuds carry an IPX4 ingress protection rating, classifying them as sweat resistant and capable of handling light moisture exposure.

Sound quality:

has active noise cancellation (ANC) ✕
has passive noise reduction ✕
driver unit size 13 mm
lowest frequency 20 Hz
highest frequency 20000 Hz
supports spatial audio ✕
has Dolby Atmos ✕
has Dirac Virtuo ✕
has a neodymium magnet ✕

The Lenovo EA400 uses a 13 mm driver unit and covers a frequency range of 20 Hz to 20,000 Hz. The earbuds do not include active noise cancellation, passive noise reduction, or a neodymium magnet, and they do not support spatial audio, Dolby Atmos, or Dirac Virtuo.

Power:

Battery life 6 hours
Battery life of charging case 18 hours
charge time 1.5 hours
has wireless charging ✕
Has a solar power battery ✕
has a battery level indicator ✓
has a rechargeable battery ✓

The Lenovo EA400 offers 6 hours of battery life per charge, with the included charging case extending total playback to 18 hours. A full charge takes 1.5 hours, and the earbuds feature a rechargeable battery with a battery level indicator. Wireless charging and solar power are not supported.

Connectivity:

has fast pairing ✕
Has USB Type-C ✓
Bluetooth version 5.4
has LDAC ✕
has LDHC ✕
has Bluetooth LE Audio ✕
has aptX Adaptive ✕
has aptX Low Latency ✕
has aptX HD ✕
has aptX ✕
has aptX Lossless ✕
has aptX Voice ✕
has Auracast ✕
maximum Bluetooth range 10 m
supports Bluetooth pairing using NFC ✕
Can be used wirelessly ✓
has AAC ✕

The Lenovo EA400 connects wirelessly via Bluetooth 5.4 with a maximum range of 10 meters, and charges through a USB Type-C port. It does not support fast pairing or NFC pairing, and none of the advanced audio codecs are present, including LDAC, LDHC, AAC, aptX in any of its variants, Bluetooth LE Audio, or Auracast.

Features:

has ambient sound mode ✕
has in/on-ear detection ✕
Supports fast charging ✓
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 Lenovo EA400 supports fast charging and can be used as a headset, with a mute function and voice prompts included for hands-free convenience. Controls are handled through an on-device panel rather than an in-line control, and a travel bag is included in the box. The earbuds do not offer ambient sound mode, in-ear detection, notification reading, a temperature sensor, or a built-in camera remote.

Microphone:

number of microphones 4
has a noise-canceling microphone ✓

The Lenovo EA400 is equipped with a 4-microphone array that includes noise-canceling microphone technology, supporting clearer voice pickup during calls.

Final Verdict

The Lenovo EA400 is a no-frills pair of true wireless earbuds that delivers on the basics without overreaching. Its open-ear design, IPX4 sweat resistance, and 4-microphone noise-canceling array make it a genuinely practical option for daily use, particularly for users who take frequent calls and want to stay aware of their environment. Battery life is reasonable for the category, and the inclusion of fast charging and a travel bag adds everyday convenience. Where it falls short — notably in audio codec support, noise isolation, and Bluetooth range — reflects a deliberate focus on simplicity over audiophile-grade performance. For users whose needs align with that scope, the EA400 serves its purpose competently; those with more demanding audio or connectivity requirements will likely find its spec sheet limiting.

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