The Cleer Arc 4 feature an open-ear fit paired with included wingtips to help keep the earbuds secure during use. They are true wireless, meaning there are no cables involved, and each earbud houses a stereo speaker. At just 21.6 g, the overall build is notably light. The design carries a IPX7 ingress protection rating, classifying them as waterproof and capable of withstanding submersion. There is no neckband, RGB lighting, UV light, or built-in display.
The Cleer Arc 4 use a 16.2 mm driver unit and reproduce a frequency range spanning from 65 Hz up to 40,000 Hz. The earbuds do not include active noise cancellation or passive noise reduction, so they are not designed to block out ambient sound. There is no support for spatial audio, Dolby Atmos, or Dirac Virtuo processing, and the drivers do not use a neodymium magnet.
The Cleer Arc 4 offer 7 hours of battery life per charge, with the charging case extending total playback to 25 hours. A full charge takes 1.5 hours, and the earbuds include a battery level indicator to keep track of remaining power. The battery is rechargeable, though wireless charging and solar charging are not supported.
The Cleer Arc 4 connect wirelessly via Bluetooth 5.4 with a maximum range of 10 m, and USB Type-C is used for wired charging. Supported audio codecs include aptX Adaptive, aptX Lossless, and AAC, while LDAC, LDHC, aptX, aptX HD, aptX Low Latency, and aptX Voice are not available. Bluetooth LE Audio and Auracast are also absent, and the earbuds do not support fast pairing or NFC-based pairing.
The Cleer Arc 4 support multipoint connectivity for up to two devices simultaneously and can be used as a headset, with a mute function available during calls. Fast charging is supported, and voice prompts are included to assist with device feedback. Controls are handled via a panel placed on the device itself, with no in-line control panel. A travel bag is included in the box. The earbuds do not offer ambient sound mode, in-ear detection for auto-pause, a find-device feature, notification reading, a built-in translator, a temperature sensor, or a camera remote shutter function.
The Cleer Arc 4 are equipped with four microphones and include noise cancellation on the microphone side, helping to reduce unwanted background sound during calls and voice communication.
The Cleer Arc 4 include support for Dolby Audio processing.