【Smaller than your expected】 Great Bluetooth adaptor ,portable and compact design with clip . | 【Battery life is good for full day】 Much longer than advertised.Amazing is that you can use it when charging. | 【Connects in seconds】 Automatically connect to carplay or auxilary car audio when turn on the phone.Bluetooth 5.0 bring with awesome noise cancellation . | 【All the buttons work like they are supposed to】 The controls are conveniently placed and intuitively arranged and are very responsive. | 【Perfect device for going “wireless” with wires!】 Small,simple and also amplifies what ever you listening to. Change any old 3.5mm jack speakers and headphones that don’t have direct Bluetooth connection into wireless one. Can also be used with aux input to send music to hifi home audio,mixer,and sound source.