High quality HIFI true bluetooth headset with battery case 400mah capacitySpecification ofbluetooth headset HZ-31:
Model:Bluetooth headset HZ-31,True wirless bluetooth earbudsBluetooth Version :V4.2Chipset:JLFrequency response:20Hz~20KHzFrequency range:2.402-2.480GHzImpedance16omDynamic drivers10MMMIC sensitivity-42db±3dbMicrophone directionOmnidirectionCompatible device99% devices on marketSNR-58dBWorking range10-15mStand-by time120hoursEarphones charging time:about 1 HPlay music time :2.5hoursTalking time:2.5 hoursBattery capacity :Earphones :3.7V / 50mAh ,Charging case: 3.7V/400mAhProduct size:22*20*23mmProducts Weight10gStandard Accessories3 size earbuds cap L , M , S , USB cable for charging .PackageGiftbox package Giftbox size (cm)15.5*12*5**5 cm (giftbox package size) CTN size (cm)52.5*38.5*28.0cmCarton Weight :G.W 10kg . N.W :9kgCTN Information60pcs /cartonContainer20''GP :28800PCS 40''GP: 63360PCS40''HQ :71280PCSWarranty periodone year