The Roseselsa OpenFree wireless earbuds feature an open-ear design for comfort and a sweat-resistant build, with an IPX4 rating for protection against water. These true wireless earbuds offer a cable-free experience and include stereo speakers for clear sound. Notably, they do not come with a neckband, wingtips, or RGB lighting, ensuring a streamlined, lightweight design. There's also no display or UV light feature included.
The Roseselsa OpenFree earbuds feature 10 mm driver units that deliver sound across a frequency range of 20 Hz to 20,000 Hz. However, they do not include active noise cancellation (ANC) or passive noise isolation, which means they rely on the natural fit to block out ambient sound. The earbuds have an impedance of 32 Ohms and do not feature any neodymium magnets for enhanced sound performance.
The Roseselsa OpenFree earbuds offer a 10-hour battery life on a single charge, with an additional 42 hours available from the charging case. The earbuds themselves are powered by a 45 mAh rechargeable battery, while the case holds a 500 mAh battery. Charging the earbuds takes about 2 hours, but they do not support wireless or solar charging. A battery level indicator helps you keep track of power, ensuring you're always aware of your charge status.
The Roseselsa OpenFree wireless earbuds feature Bluetooth 5.4 connectivity, allowing for a stable connection within a 10 m Bluetooth range. They support both LDAC and LDHC for high-quality audio streaming, while also being compatible with the AAC codec. However, they do not support fast pairing, Bluetooth LE Audio, or NFC pairing, and they do not offer advanced aptX features such as aptX Adaptive or aptX Low Latency.
The Roseselsa OpenFree earbuds come equipped with several useful features, including fast charging support, allowing for quicker power-ups. They can connect to two devices simultaneously with their 2-device multipoint count. The earbuds also offer a mute function and can be used as a headset for calls. Additionally, voice prompts are included for easy navigation, and a travel bag is provided for convenient storage and transport.
The Roseselsa OpenFree earbuds are equipped with a noise-canceling microphone, ensuring clear communication during calls or voice recordings by minimizing background noise.