HANDS FREE - the headset is appreciated primarily by active people who talk a lot on the phone during work or home activities. The wireless handset allows for convenient hands-free calls, for example, you can call a car, work at the computer at the same time and even clean or play sports. VOLUME CONTROL AND SOUND SETTING - the ability to adjust the volume to your own needs and the volume of the environment is a great convenience, in addition, the headphones are a noise reduction function, thanks to which the sound is clear and clear. ADDITIONAL ITEMS INCLUDED - The headset is not only this practical wireless headphones, but also useful additional elements, such as a second wired earphone that can be connected to the wireless one (for the second ear), as well as a USB -microUSB -cable and additional rubber bands. SLOW AND DURABLE BATTERY - The wireless handset has a 10 m Bluetooth range, so you can use it to talk on the phone or listen to music at a greater distance from the phone. Powerful battery that only charges in 2 hours, enables 6-8 hours of calls or listening to music, and in standby mode the phone can last up to 11 days. SPECIFICATIONS: micro USB input: yes switch: yes adjustable volume: yes bluetooth version: 4.1 range: 10 m charging time: 2 hours standby time: approx. 11 days talk time: 6-8 hours music playing time: 6-8 hours noise reduction: yes sweat resistance: yes dimensions: 6.5 / 4/2 cm weight: 0.017 kg