Here we have a sony m-430 recorder
Details
Audio System
Sound Output Mode Mono
Record Level Control Automatic
Additional Features
Battery level indication
Battery
Battery2 x AA type
Battery Life recording - alkaline - up to 24 hour(s)
Details Tape
Cassette System
Control TypeMechanical
Auto Shut-OffFull
Features2-speed record/playback, cue and review controls
Connections
Connector TypeHeadphones (mini-phone mono 3.5 mm) DC power input
General
Product TypeMicrocassette dictaphone
Width2.4 in
Depth1.6 in
Height3.7 in
Weight6.35 oz
Enclosure ColorBlack
Enclosure MaterialPlastic
Manufacturer Warranty
Service & SupportLimited warranty - parts and labor - 1 year
Microphone
TypeMicrophone - built-in
Microphone TechnologyElectret condenser
Microphone Operation ModeMono
Miscellaneous
Included AccessoriesHand strap (not included with this item)
Speaker System
Speakers1 x speaker - built-in - 0.1 Watt
Driver DetailsSpeaker: 1 x full-range driver - 1.1"
Universal Product Identifiers
Brand Sony
Part NumbersM-430, m430, M-430
GTIN00027242545885
https://docs.sony.com/release//M635VK.pdf