Designed with two high-grade speaker and has built-in mic, powerful bass system, bring you superior sound effect. Best choice for listening to music or FM radio, watching movie, chatting online, etc. The wireless Bluetooth headphone is built-in 200mAh battery, which can continuously play about 6-8 hours, and the standby time is up to 15 hours. The Multifunctional headphone combines the Bluetooth, Card MP3 player and FM Radio function, and supports hands-free function. With this product, you greatly enjoy the wonderful wireless music, listen to FM radio, and it also can be worked as a MP3 Player because it supports memory card (TF card). It’s also foldable in design, and can be stored into your bag, portable and lightweight. Specification: Headphone battery: 200 Mah Charging time: 1~2 Hours Working time: 6~8 Hours Packing box Size: 11*17*7cm Product Weight: 200g Support TF card: Yes Support memory card: Yes Microphone: Yes Control volume: Yes OEM: Yes Package Includes: 1x Wireless Headphone 1xUSB Charging Cable 1xUser Manual