Pricey for what they are. Using the default channels we found a clear one and set the four around the house (3,300sq ft). They work up to about 1 mile away (through trees and hills) but we do a lot of "What?" type communication. The builtin MIC does not pick up voice as well as expected.
Update: Retevis customer service contacted me. (+1 star) which is always appreciated and offered several solutions unfortunately we are using these radios as a portable intercom and unless you speak loudly directly into the mic the receiver may miss some words. I'm told the headset mic has better pickup.
I did another test. With a receiver set 15' away and turned up high I said "test test test" getting louder each time with my mouth at the mic. At a whisper all you hear is static. At a normal conversation speaking voice you hear 50% of the "test"s and at a loud voice you might use to speak to a neighbor across the street you hear 100% of the "test"s but some of them distort (probably because the speaker was up high). Not really bad just a limitation of technology.
- Product Dimensions: 6 x 3.3 x 11.5 cm ; 181 g
- Boxed-product Weight: 1.5 Kg
- Batteries 4 Lithium ion batteries required. (included)
- Item Model Number: A1044A*4-US-TT
- ASIN: B00IH5T0ZG
- Date first available at Amazon.com.au: 16 November 2017
- Average Customer Review: Be the first to review this item