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) 
BODY: 143.6 x 70.9 x 7.7 mm (5.65 x 2.79 x 0.30 in)
WEIGHT: 174 g (6.14 oz)
CHIPSET: Apple A11 Bionic (10 nm)
CPU: Hexa-core 2.39 GHz (2x Monsoon + 4x Mistral)
GPU: Apple GPU (three-core graphics)
OS: iOS 11.1.1, upgradable to iOS 12.1.3
INTERNAL MEMORY: 64 GB, 3 GB RAM
MAIN CAMERA: 12 MP, f/1.8, 28mm (wide), 1/3", 1.22µm, OIS, PDAF12 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0µm, OIS, PDAF, 2x optical zoom
FRONT CAMERA: 7 MP, f/2.2, 32mm (standard)
FEATURES: Face ID, accelerometer, gyro, proximity, compass, barometer Siri natural language commands and dictation
BATTERY: Non-removable Li-Ion 2716 mAh battery (10.35 Wh)
MISC: COLORS; Space Gray, Silver
NETWORK: TECHNOLOGY; GSM / CDMA / HSPA / LTE