The Anker Soundcore P40i are true wireless in-ear earbuds with no cables or neckband, weighing just 8 g per unit, which keeps them light during extended wear. They carry an IPX5 rating, meaning they are resistant to sweat and water splashes, though they are not designed for submersion. Each earbud delivers stereo sound, and the design omits wingtips, RGB lighting, UV light, and a display, keeping the form factor straightforward and uncluttered.
The Anker Soundcore P40i use an 11 mm driver unit with a frequency range spanning 20 Hz to 20,000 Hz and an impedance of 14 Ohms, covering the full standard audible spectrum at a relatively easy-to-drive impedance level. Noise reduction is handled on two fronts — active noise cancellation (ANC) works alongside passive noise isolation provided by the in-ear fit itself, helping to block out ambient sound in noisy environments. Spatial audio, Dolby Atmos, and Dirac Virtuo are not supported, and the drivers do not use a neodymium magnet.
Each earbud houses a 60 mAh rechargeable battery delivering up to 12 hours of playback, which drops to 6.5 hours when ANC is active, while the 800 mAh charging case extends the total combined battery life to 48 hours. A full charge takes one hour, and the case supports wireless charging in addition to wired charging, adding flexibility to daily top-up routines. Solar charging is not available, but a battery level indicator is present to keep users informed of remaining charge.
The Anker Soundcore P40i connect wirelessly via Bluetooth 5.3 with a maximum range of 10 m, and support fast pairing for quick device setup. AAC is the only high-quality audio codec on offer — LDAC, LDHC, aptX in all its variants (including aptX HD, aptX Adaptive, aptX Low Latency, aptX Lossless, and aptX Voice), Bluetooth LE Audio, and Auracast are all absent. NFC pairing is not supported, and wired charging is handled through a USB Type-C port on the case, though the case itself does not transmit audio via USB.
The Anker Soundcore P40i include a practical set of everyday features, starting with ambient sound mode for environmental awareness, a mute function, voice prompts, and on-earbud touch controls — though there is no in-line control panel or automatic ear-detection to pause playback when removed. Multipoint connectivity supports simultaneous pairing with two devices, and fast charging is available to top up the case quickly when needed. A find-device function helps locate misplaced earbuds, and the earbuds can be used as a headset for calls. The package comes with a travel bag for storage and transport, and the product is covered by a 1.5-year warranty. Notification reading, a body temperature sensor, and a camera remote shutter function are not included.
The Anker Soundcore P40i feature a six-microphone array with built-in noise cancellation on the mic side, which helps isolate the speaker's voice from background noise during calls and voice interactions.