They sit outside the ear and use bone-conduction or directional audio technology to deliver sound toward the inner ear, so you can hear audio while still perceiving ambient sounds for situational awareness.
Available Bluetooth versions include 5.3, 5.2, and 5.1. Listed wireless ranges vary by model, commonly up to about 30–33 feet (roughly 9–10 meters).
Many models are described as water-resistant or sweatproof; several list an IPX5 rating, which indicates protection against sweat and light moisture (suitable for workouts and light rain).
The listed frequency response across the options is 20 Hz to 20 kHz.
Some listings specify USB-C charging and include a USB-C cable; other models are wireless-only with no wired connection ports. Both USB-C charging and wireless-only options appear across the available details.
At least one neckband model includes bright LED lights on the band for increased visibility at night; that model is described in its title as an LED-neckband.
