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: 144.8 x 72.1 x 8.9 mm (5.70 x 2.84 x 0.35 in)
WEIGHT: 160 g (5.64 oz)
OS: Android 6.0 (Marshmallow)
CHIPSET: Mediatek MT6737T (28 nm)
CPU: Octa-core 1.4 GHz Cortex-A53
GPU: Mali-T720MP2
INTERNAL MEMORY: 8 GB, 1.5 GB RAM
MAIN CAMERA: 8 MP, AF, f/2.2
FRONT CAMERA: 5 MP, f/2.2
FEATURES: Accelerometer, gyro, proximity, compass 
           - ANT+
BATTERY: Non-removable Li-Ion 2600 mAh battery
MISC: COLORS; Black, Gold, Pink, Blue, Silver
NETWORK: TECHNOLOGY; GSM / CDMA / HSPA / LTE