1.10 years factory and business experience 2.Good quality 3.Professional service 4.OEM logo service Anodized aluminum dual chestpiece of diameter 38mmFor pediatricAluminum chrome plated binaural,white plastic of softMaterials ear tipsOne Y-PVC tubing in assortedColors:Black,Yellow,Red,Pink,Blue,Orange,Green,White,Gray,Navy,Brown,Peach,Lavender,etc.Packing: PC/BOX :100PC/CTNCarton size:52×41× ...