Call Us: 02 9894 2499
Diamond Dealer


Olympus WS-852 Digital Voice Recorder

The WS series established for its clear audio quality and superb operability has been improved. The new WS-852 features a new Intelligent Auto Mode, which is perfect for when there is a distance between the speakers and recorder, such as in large meeting rooms. The recorder optimises the recording level regardless of whether the audio source is near or far, making it possible to record audio that is easy to listen to. Simple Mode has been added to the menu for easy, intuitive controls that are perfect for beginners. The new WS series recorders can be used in a wide range of situations, from students to business users.

Price: $99

High quality recording

With the ease of use found in all WS series recorders, this model achieves a highly realistic stereo feeling thanks to the two low noise, high sensitivity microphones. The new Intelligent Auto Mode provides automatic sensitivity adjustment, and a Low-cut filter removes unnecessary noise from your recordings.

Superb stereo feeling with True Stereo Microphones

Two low-noise directional microphones positioned at a 90° layout enable you to create high quality recordings with a realistic stereo feeling. This feature ensures that you capture the sense of direction and distance of the speakers in the recording which is useful for meetings, lectures or training presentations.

Automatic sensitivity adjustment with Intelligent Auto Mode

The new Intelligent Auto Mode function automatically adjusts the microphone sensitivity according to the input level. For example, when you record the voice of a person far away in a large meeting room, the input level tends to be lower. In this case, the recorder automatically raises the sensitivity of the microphone making them easier to hear. Alternatively, when you record in a smaller meeting room with only a few people, the sensitivity is automatically lowered, so that the voice of the speakers close by do not sound too loud. In this way, the function automatically keeps track of the input level and simultaneously adjusts the recording level so that it always records in the best quality. This ensures that the recording remains consistent by not having a speaker’s voice too quiet or too loud. To set this function, simply select “Auto” as the recording level from the menu.

Low-cut filter eliminates extraneous noise

During recording, the low-cut filter is used to cut the sound at frequencies of 300 Hz and lower during the recording process. Typical examples of these lower frequencies include air conditioner noise, projector fan noise, and even wind noise while outside. By cutting the lower frequency during recording your audio is natural sounding and free of background noise and distortion during playback.


Dual SD and microSD card slots allow for up to 32GB of total memory. The included 2GB microSD card holds up to approximately 306 hours of recording time.


The DS-3500’s 2-inch color LCD screen supports 3 languages, English, French and Spanish, as well as personalised welcome messages.


A Li-ion battery (710mAh), rechargeable through your computer’s USB port, allows for up to 26 hours of recording time on a single charge.


Redesigned push-button playback controls and three programmable function buttons allow for simple, easy operation.


Recording formats: MP3 format
Sampling frequency
128 kbps: 44.1 kHz
64 kbps mono: 44.1 kHz
8 kbps mono: 11.025 kHz
Maximum headphone output
Maximum headphone output: Less than 150 mV (conforms to EN 50332-2)
Recording media
Internal NAND flash memory: 4 GB
microSD card: 2 GB – 32 GB
Type: Built-in 20 mm diameter round dynamic speaker
Maximum working output: 250 mW (8 Ω speaker)
Microphone jack: 3.5 mm diameter; Impedance: 2 kΩ
Earphone jack: 3.5 mm diameter; Impedance: 8 Ω or more
Power source:
Standard voltage: 3 V
Battery: 2 AAA batteries
External dimensions / Weight / Operating temperature:
External dimensions: 111.5 mm × 39 mm × 18 mm
New button: Yes
Weight: 77g
Operating temperature: 0 to 42°C (32 to 107.6°F)
Frequency response
When recording from microphone jack: 128 kbps : 40 Hz to 17 kHz
64 kbps mono : 40 Hz to 15 kHz
8 kbps mono : 40 Hz to 3.5 kHz
When recording with built-in microphone: 70Hz ~ 17 kHz
During playback: 30Hz ~ 20kHz
Battery life (When recording with built-in microphone):
128 kbps: When using alkaline battery: Approx. 41 hours
64 kbps mono: When using alkaline battery: Approx. 48 hours
8 kbps mono: When using alkaline battery: Approx. 110 hours
Battery life (During speaker playback)
128 kbps: When using alkaline battery: Approx. 15 hours
64 kbps mono: When using alkaline battery: Approx. 15 hours
8 kbps mono: When using alkaline battery: Approx. 24 hours
Battery life (During earphone playback):
128 kbps: When using alkaline battery: Approx. 70 hours
64 kbps mono: When using alkaline battery: Approx. 73 hours
8 kbps mono: When using alkaline battery: Approx. 90 hours
Recording time
Internal memory (4GB): 128 kbps: Approx. 65 hrs
64 kbps: Approx. 131 hrs
8 kbps: Approx. 1040 hrs
microSD card (32GB): 128 kbps: Approx. 530 hrs
64 kbps: Approx. 1060 hrs
8 kbps: Approx. 8480 hrs
microSD card (16GB): 128 kbps: Approx. 264 hrs
64 kbps: Approx. 525 hrs
8 kbps: Approx. 4230 hrs
microSD card (8GB): 128 kbps: Approx. 132 hrs
64 kbps: Approx. 264 hrs
8 kbps: Approx. 2100 hrs
Maximum recording time per file
128 kbps: Approx. 74 hrs 30 min
64 kbps mono: Approx. 149 hrs
8 kbps mono: Approx. 1193 hrs