Please include the specifications of the 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 other specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
 
Vivo Y1s
 
Screen: 6.22-inch HD+ IPS LCD Display (720 x 1520 Pixels, 270 ppi) with 19:9 Aspect Ratio and Notch
Operating System:  Android 10 with Funtouch OS 10.5
Chipset: MediaTek Helio P35
Camera: 13 Megapixels (f/2.2 Aperture, Autofocus)LED FlashUp to 1080p Video Recording
Front Camera: 5 Megapixels (f/1.8 Aperture)
Storage: 2GB RAM and 32GB
Battery: 4030 mAh Li-Po Battery (Non-removable)10W Charging Rate
Network: 4G LTE (with VoLTE), 3G HSPA+, 2G EDGE & GPRS Networks
Sim Slot: Dual SIM (Nano-SIM)