Feature:1. STRONG COMPATIBILITY: The wireless Bluetooth earphone is widely compatible with phones and devices such as for iOS series, for Android phones, laptops, and more.2. BLUETOOTH 5.4: Equipped with Bluetooth 5.4 chip, the earphone provides stable signal transmission, low power consumption during standby, and excellent performance.3. OPEN EAR DESIGN: Adopted unique open ear design, the earbud ensures highly safety during activities like jogging, cycling, and hiking.4. COMFORTABLE WEAR: The 180 degree rotatable microphone allows for wearing on either ear. With just 1.5 hours of charging time, you get 30 hours of music playback and 365 days of standby time.5. NOISE REDUCTION: Featuring a noise reduction microphone and dynamic speaker, the earphone ensures clear call quality, enjoyable music listening, and radio experience.Specification:Item Type: Wireless Bluetooth EarphoneMaterial: PC, ABSBluetooth Version: V5.4Bluetooth Range: Approx. 10-20m / 32.8-65.6ftSpeaker: 16mmCharging Port: Type CBattery Type: 300mAh Lithium ion Battery (Built in).Package List:1 x Wireless Bluetooth Earphone (Shipped with Built in Battery)1 x Charging Cable1 x User Manual