Specification:1. Name of product:J8 Smart Bluetooth headset Mini phone2. Bluetooth 3.03. Longest distance:10M4. On call:5 hours Standby 120 hours5. Weight:18g6. OLED screen:0.66 inch,fashion,exquisite7. Mini 5 pin USB jack,5V charging8. 32MB memory,support 250 phone numbers,one key set call function with mobile9. Main functions:support SIM small card,stereo music,BT dialer,sync answer/phone call with smartphone and tablets,lock keyboard,saving or sync mobile 250 phone numbers11. Color:Black/White/ChampagneFeature:"1.3 kinds of functions in one machine: Bluetooth 3.0 Bluetooth phone, Smart Bluetooth,Headset; Plug-in card mini phone""2.3 kinds of functions in one machine: Pendant accessories can be spit&assembly Supporting wear a rope to hang in the chest 3 sets as you change Wired headphone connection"