Please include the specifications of the ordered product when filling up your order. On the lower part portion of the product image, then click "add a note" to specify your preferred color, memory, and specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
 
Voltz Handsfree SK3
 
Drive Unit: 10mm
Impedance: 16 +15%
Sensitivity: 93 + 3B
Frequency: 20Hz-50KHz
Cord: 1.2M
Connector: 3.5MM
 
Features: 
Silicone comfortable earbuds, ergonomic design, streamline shape, exquisite stylish simple appearance.