Which Bluetooth version does Nothing Headphone (a) use? March 05, 2026 06:15 Updated Bluetooth 5.4 Related articles How long does it take for Nothing Headphone (a) to power off automatically? What material is the outer casing of Nothing Headphone (a) made of? Is Nothing Headphone (a) resistant to water / dust? What is ENC? What's the battery life on Headphone (a)?