left and right ears. ear caps, friendly The popular one-button control function supports switching songs, calls and voice assistants for calls. feature: Bluetooth version: V5.0 Standby time: 720 hours Headphone playback time: 4-6 hours Battery capacity: 90mah Material: ABS+UV+food earmuffs Colour: Black Product List: 1x bluetooth headset Wireless Earpiece Clearance!Easy Usage: Connect with two devices effortlessly and enjoy clear sound quality with the built-in HD microphone. Never miss a call or beat with this wireless headsetErgonomic Design: With 180 rotating earphones, this wireless headset conforms to your unique ear shape for a comfortable, secure fit. This ergonomic design is perfect for prolonged usage and provides the headset doesn't slip or fall out during any activity, from workouts to conference callsStable Wireless Connection: Achieve excellent communication results and listen to high-fidelity music with perfect clarity due to its stable wireless connection and great performance which stretches up to 10m/32.8ft