FANZY Bluetooth Headset with 8-Hr Call Time, D12 Car Bluetooth V4.2 Earbud Wireless Earphones with Mic & Noise Cancelling for iPhone Samsung Android Cell Phone (White) Bluetooth:Bluetooth Standard,you can connect your phone,computer(laptop or desktop computer to a Bluetooth adapter) and other Bluetooth-enabled deviced;effecyive distance of 10 meters. Compliant with the Bluetooth 2.1 standard,high date transfer rates,and with excellent anti-jamming capability. High sensitivity,fast coonection to Bluetooth devices within operating range Support phone call function,supports conference calla-via Bluetooth phones,the available speaker directly answer the phone, Standalone player :This machine is plugged in SD card/ U Retrodiscal can play stored music files;can play music formats include MP3,MP4,WMA,WAV As a high quality Speaker,full connect your (via Bluetooth or 3.5mm standard audio cable):cellphone,laptop.MP3,MP4,desktop computer,DVD,CD,PMP,all kinds of games and so on audio output digtal equipment; FM radio function High-sensltivity radio,clear sound Power supply built-in lithium battery,power supply,or 5VMiniUSB built-in batter,no external pwer supply can enjoy music for long time;ready Car etc.Stylish,portable and light weight designed; to refuel life Flexibility can be in car and office environments;