Please include the specifications of the product when filling up your order. On the lower part portion of product image, then click "add note" to specify your prefer color, memory and other specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
Latest 5.0 bluetooth protocol
Ultra-low power consumption
Support binaural Communication
Music is 2.5 hours long
Hi-fi sound quality