Color Black, Dual band or Single band Single band, Frequency Range UHF: 400-470MHz, Dual frequency or Single frequency Single frequency, Rated Voltage 3.7V DC, Battery capacity 1000mAh, Battery type Li-ion battery, Dimension(LXWXH) 60X33X115mm(Not Antenna), Working temperature -30~+60°C, Model Retevis H777, Output power <5W, Antenna Impedance 50 ohm, Memory Channel 16, Weight 180g. Check coupons or create price alert down below. Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($27.13): BG00c906
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110, BGd0b05d, BG2589f4, 00c906
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Retevis H777 Walkie Talkie. The lowest price was: $14.99.
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)).