The Studio Wireless headphones have a long 30+ hour battery life, so you can jam out for days. Cloud Foam earcups bring the studio comfort to you. Control all of your music on the side of the earcup, as well as answer and hang up phone calls. Custom EQ3 Sound allows you to choose your tune between Signature, Balanced, and Bass Boost. The Studio Wireless headphones have a long 30+ hour battery life, so you can jam out for days. Cloud Foam earcups bring the studio comfort to you, plus adjustable and foldable hinges mean you can bring them anywhere. Custom EQ3 Sound allows you to choose your tune between Signature, Balanced, and Bass Boost. Headphone FeaturesCloud foam ear pieces. Micro USB cord. Connection: true wireless. Bluetooth enabled for a wireless connection to your devices . 40mm driver. In-line controls. Adjustable headband. Foldable. 10m range. Bass control. IPX4 splashproof. Compatible with universal smartphones. Li-Ion battery (included) . Rechargeable battery. 30 hour battery life. 180 minute charging time. Charging case included. General InformationModel number: HBASTUDIORBLK4. Manufacturer’s 1 year guarantee. EAN: 812887018449. Warning - Not suitable for children under the age of 3 years due to small parts and entanglement hazard.