Cheap And Discounts Retevis EEY001 Earhook Earpiece 3.5mm Single needle Earphone with PTT Microphone for RETEVIS RB19 RB619 RT22P RT622P B63S B63H Wholesale. Buy Directly From Merchant RETEVIS offical Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.