Sony Wireless Headphones MDR- IF-140

I can also use a mobile phone only in the house, because they are connected to the base and the rectifier and the distance is only 10 meters, but note the headphones are intended for homework because they have a base and are not intended to be worn outside, in the city, on a trip, etc. Wireless HeadphonesMDR- IF-140,ONLY 10 METERS,TRANSFER. That&why they&pretty solid.Subscribe for more