... .Hi-fi,remote chat 2.Portable,foldable 3.Infrared wireless distance:10~15m 4.OEM logo & package ... .2. Operating distance up to 10meters with latest infrared wireless technology3. Foldable design, convenient to carry with.4 ... headphone: 2*AAA batteriesOEM Logo and Package are welcome!More information,pls visit our company website: http://www.szwirelessheadphones.com Foldable Infrared Wireless Headphone ...