Harmonics Talky S is a very small, stylish, single ear Bluetooth earbud that allows you to enjoy music while and also takes phone calls using a built-in mic. This wireless headphone earbud has strong magnetic speaker with Acoustic echo reduction technology and enhanced noise cancellation technology to filter out the external noise and enable clearer sound during the calls or while listening to music. This Earphone has strong magnetic speaker with acoustic echo reduction technology and enhanced noise cancellation technology to reduce the noise and enable clearer audio for the listener on the other side of the call. It can connect with two devices simultaneously with ease. It is just 4 grams of weight, you will not feel awkward wearing it in casual of formal situations. It has Li-Polymer battery that can be fully charged in less than 2 hour and provides an impressive 4-hour talk/play time with 70 hour of standby on a single charge. Compatible with mostly Bluetooth- enabled devices/phones/ tablets/notebooks. The ABS plastic body gives comfortable, ergonomic and secure fit in the ear.