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) 
 
Samsung Galaxy A30
 
BODY: 158.5 x 74.7 x 7.7 mm (6.24 x 2.94 x 0.30 in)
WEIGHT: 165 g (5.82 oz)
OS: Android 9.0 (Pie)
CHIPSET: Exynos 7904 (14 nm)
CPU: Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
GPU: Mali-G71 MP2
INTERNAL MEMORY: 64 GB, 4 GB RAM or 32 GB, 3 GB RAM
MAIN CAMERA: 16 MP, f/1.7, PDAF5 MP, f/2.2, 12mm, (ultrawide)
FRONT CAMERA: 16 MP, f/2.0
FEATURES: Fingerprint (rear-mounted), accelerometer, proximity, compass
BATTERY: Non-removable Li-Po 4000 mAh battery
MISC: COLORS; Black, Blue, Red
NETWORK: TECHNOLOGY; GSM / HSPA / LTE