Featuresr you must connect your phone with bluetoothr the product with microphone convenient to user 40 smart chip efficient transmission speedr bluetooth v40 connect with two phones at the same timer high fidelity sound quality wireless songs enjoyr voice report number low power remind connectdisconnect remind boot off promptsr long battery life fast chargingr allows you to conveniently answer calls while drivingr compatible for almost all the mobile phones and tablet pc etc