You can get Duplex MMDVM Hotspot with Shell for $147.05 with coupon (from Banggood). You can create price alert here, copy coupons and view price history. Best price?
Duplex MMDVM Hotspot w/ Aluminum Alloy Shell Color Display Screen Supports For C4FM/DMR/DSTAR P25 With Raspberry Pi 1B+ – No battery
Latest coupon code price check (UTC time):
Banggood ($147.05)
Banggood warehouse is located in China. What about the price? Hmmm, price is higher than average (which is $121.49 right now), so better set price alert down below… Only one coupon available!
Link: Banggood product page
Price without coupon: $159.84
1. ($147.05): BGALL8
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGHONEYSP, BGESJY8
(there’s a little possibility that old coupon will work)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Duplex MMDVM Hotspot with Shell is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).