@HAZERATTI idk if this answers your question but here's the full specs of the item that I pulled off of of google.
LED Battery Level Indicator 19 Hour Battery Life Built-in Speaker One-Touch recording Cue And Review with Slide control Sonymatic? Automatic recording Level Control Automatic Shut-Off 2-Speed record/Playback DC-In Jack Earphone Jack Hinged Battery Lid Microcassette System uses ultra-compact easy-to-obtain microcassettes for recording and playback convenience LED Battery Level Indicator provides a visible signal of the battery power remaining 19 Hour Battery Life is made possible by advanced technology that extends battery life beyond previous limits Built-in Speaker provides excellent sound quality, to monitor tape playback One-Touch Recording for simplified, quick, play/record operation Cue And Review with Slide control allows one hand operation to produce sound during Fast Forward or Rewind to help find specific passages Sonymatic? Automatic Recording Level Control ensures correct recording levels for the particular situation Automatic Shut-Off at end of tape helps reduce mechanical wear and conserves battery power Built-in microphone lets your make recordings conveniently in a variety of situations 2-Speed record/Playback gives you the option of recording on a standard microcassette for twice its normal time, for an extended dictation or recording session DC-In Jack permits two-way power operation, using available replaceable batteries or optional AC power adaptor Earphone Jack allows us of optional earphone for individual listening to playback and for privacy without disturbing others Hinged Battery Lid helps prevent accidental loss of lid Tape System 2 Track, 1 Channel Monaural Microcassette Frequency Response 250-4000Hz Microphone Built-in Electret Condenser Inputs DC-In, 3V Outputs Earphone Mini jack Speaker 1 7/16" (36mm) dia. x 1 Power Output AC 160 mW (at 10% THD) Power Requirements DC 3V with "AA" x 2 Batteries AC 120V, 60Hz