Remote Microphone for the AnyTone AT-D578UV radios. Will work through BlueTooth if your radio has bluetooth. If your radio does not have Bluetooth then you can use a CAT 5 cable connected to the Microphone Jack of your radio. If using Bluetooth, the internal 1800 mAh battery is good for about 12 hours.

Anytone BT-01 Mobile Bluetooth Speaker Mic for AT-D578UV Models with Bluetooth
The Bluetooth mobile speaker mic acts like a wireless remote mount, giving you full control and functionality of your mobile radio in the palm of your hand. With a large 2.2 inch display, the Bluetooth mic has a larger display than the AT-D578UV series mobile. Built in front fire speaker for clear audio. Up to 30ft of Bluetooth range.

Features:
Channel/Frequency Select
Zone Select
Volume Adjust
P1-P3 Programmable
Includes removeable microphone cable
Up to 12 hours of operation on a full charge
Charging status indicator
*Works with Anytone D578UV series mobile radios with Bluetooth function only*

Specifications:
Bluetooth Version: V4.2+EDR
Protocol: HFP/HSP/A2DP/AVRCP/SPP
Bluetooth Range: 30ft (10m)
Audio Speaker: 1W
LCD Screen: 2.2in
Charge Type: 5V USB Type-C
Battery Capacity: 1800mAh (3.7V)
Dimensions: 4.3 x 2.45 x 1.1 in (109 x 62 x 28 mm)
Operating Temperature Range: -4 to 131 °F (-20 to 55 °C)