Bluetooth based Mask With Spy Earpiece electronic model BT0709 -Mobile is needed

It's a complete set of Bluetooth Mask and a Spy earpiece - MICSPY Earpiece. Battery backup is 4 to 5 hrs and the sound quality is very good. Battery backup of earpiece - 4 hrs per cell Charging time - 2 to 3 hrs. Phone to mask distance - 10 M is best.

Inside package - 
1 X mask 
1 MICSPY earpiece with two cells or  Magnetic earpiece with a stick (As per customer's selection)
1 X charging cable and charger

BATTERY BACKUP DEPENDS UPON THE MODEL YOU CHOOSE.