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) 
 
Oppo F11 (128GB)
 
BODY: 156.5 x 76 x 7.5 mm (6.16 x 2.99 x 0.30 in)
WEIGHT: 152 g (5.36 oz)
OS: Android 7.1.1 (Nougat); ColorOS 3.2
CHIPSET: Mediatek MT6763T Helio P23 (16 nm)
CPU: Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU: Mali-G71 MP2
INTERNAL MEMORY: 64 GB, 6 GB RAM or 32 GB, 4 GB RAM
MAIN CAMERA: 16 MP, PDAF, f/1.8
FRONT CAMERA: 25 MP, f/2.0, 1/2.8", 0.9µm
FEATURES: Fingerprint (rear-mounted), accelerometer, proximity, compass
BATTERY: Non-removable Li-Ion 3400 mAh battery
MISC: COLORS; Solar Red, Diamond Black, Moonlight Silver (64GB only)
NETWORK: TECHNOLOGY; GSM / CDMA / HSPA / LTE