About this item [Long Battery Life & Standby] Enjoy up to 15 hours of talk time on a single charge (approximately 1 hour), with over 240 hours of standby time. With its compact and portable design, this bluetooth earpiece is perfect for official or business travel! [Great Sound Quality] These wireless earphones feature Bluetooth V5.1, with crystal clear and crisp audio for both calls and music playback, top-notch noise cancellation features. With no freezing or lag during use. [Multi-functional] These wireless bluetooth earphones can control music playback, answer/end/reject calls, and activate voice assistants like Siri and Google Assistant. [Enhanced Call Experience] Stay focused on your business calls with the built-in microphone that eliminates background noise. Answer calls hands-free with these bluetooth headphones, ensuring your convenience and productivity. You can also switch this Bluetooth earphone from your left ear to your right ear freely. [Great Connect Ability] Easy to pair with all Bluetooth-enabled devices such as mobile phones, tablets, laptops, etc, connecting two devices at the same time to improve work efficiency! [IPX7 Waterproof Grade] The waterproof technology protection level reaches IPX7, making these single ear wireless earphones splashproof, sweatproof, and rainproof. Don't worry about sweating profusely during exercise, bring them along for your morning jog!