Wireless Bluetooth 5.0 Connectivity Enjoy fast, stable, and seamless connection with your smartphone, tablet, laptop & more.- Powerful Stereo Sound with Deep Bass High-quality drivers deliver rich bass and clear audio for an immersive listening experience. Full Charge 1.3 hour before 1st Use.- Built-In HD Microphone Crystal-clear hands-free calling with one-touch control buttons.- Wireless Bluetooth headphones are rechargeable & Mic and with heavy bass and Best sound quality. You can play songs with Bluetooth Connectivity & Also with Aux. You can insert memory card in this headphone and play songs without connecting your phone- These headphones make listening to music convenient and hassle-free as they come with buttons to use at work., Can freely control the switch of previous song and next song, pausing song, answering calls, ending calls, refusing the incoming call, dialing the last number, volume control., Answering phone communication, music and phone controls ensure ease of use.