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– Frequency range: 400 – 470MHz, – Number of channels: 16, – Output power: 1.9 + / – 0.2W, – Communication distance: 2 – 5km, – Rated voltage: DC 3.7V, – Input voltage: 5V 1A, – Channel spacing: 25KHz, – Battery: 3500mAh (included in product), – Battery standby time: 120 hours
Aliexpress
There’re some similar (or not) items on Aliexpress
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Price history and price alert
Price history (for all/most countries) for NO1 Ip01 Walkie Talkie is here.
Price records source(s): Gearbest
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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)).