Specifications - Retevis Rb658 Bedienungsanleitung

e. Open the RETEVIS APP and select the "Talk" interface. It will automatically
connect to the paired walkie - talkie (pay attention to check the MAC ID).
f. At this time, in the "Talk" interface of the RETEVIS APP, click the PTT key to
start the two - way call between the mobile phone and another walkie - talkie.
Note:
BT Earphone: The walkie - talkie is connected to a Bluetooth headset to
perform operations such as searching, connecting, and disconnecting
Bluetooth headset devices.
BT APP Talk: User APP call, allowing the mobile APP to have a two - way call
with another walkie - talkie.
These two functions cannot be used simultaneously.
"CDS and DCS List" See the follow - up content for details.

Specifications

General
Frequency Range UHF：400-470MHz
Memory Channels 256
Channel Step Value 12.5KHz/25KHz
TX Power High power: ≤ 2W, Low power: 0.5W
Audio Distortion ≤5%
Frequency Stability ±1KHz
15