The Porodo Soundtec Vintage Wireless ENC Headphone, with classic designs and modern technology, delivers excellent audio. With a battery capacity 350mAh, these headphones will provide up to 12 hours of playtime on 70% volume and 13 hours of talking time, which suits your lifestyle just right.The Bluetooth V5.3+EDR technology and an attached working distance of 10 meters, the wireless headphones assure smooth management. Just plug and play; the headphones are made of skin-friendly materials with a micro-SD slot, allowing more playtime. The standby time is a whopping 200 hours, perfect for light and heavy listeners and stylish and practical enough for the groovy.