ASPL Odoo POS includes following features:

Store Management
Manage Carts and Process Order
It allows cashiers to manage multiple carts and process order
Order history
View all past orders as well as search by customer, product, cashier, or date.
Works offline
Odoo's POS will keep working while offline.
Print Receipt:
Connects to bluetooth printer and print receipt.

Payments
Payment methods
Cash, and online payment methods are available.
Offline payments
Orders made offline are automatically synchronised when you are reconnected.
 
Products
List of products is shown.

Customers
List of customers is shown. You can create new customer as well.