CHERUB WST-670 (01) PDF Document

The CHERUB WST-670 has the following features:

• Chromatic Tuner with Guitar, Ukulele, Violin modes.
• Built-in rechargeable battery allows over 10 hours of continuous use per charge.
• High contrast color display with strong and flexible clip for the best viewing angle.
• Auto Power off function for maximum battery life.

When the battery level is running low, please use the included USB charging cable to recharge the unit.

This device uses a Li-Po battery. To reach the maximum battery life, please charge it before using it. If the device will not be used for a long time, please charge it at least once every 3 months to maintain battery health.

Press and hold this button for 2 seconds to switch the device on or off. When the device is on, short press this button to switch in between the four different tuning modes.

When the device is in G (Guitar) tuning mode, short press this button to switch between the alternate guitar tunings (DROP D, OPEN G, OPEN D and OPEN E) and flat tuning (b, bb).

• When the pitch is flat, the display shows yellow lights on the left.
• When in tune, the display shows a blue light in the center.
• When the pitch is high, the display shows red lights on the right.

Note detection for the CHERUB WST-670 is as follows:

• Chromatic: C, #C, D, #D, E, F, #F, G, #G, A, #B, B
• Guitar: 6E, 5A, 4D, 3G, 2B, 1E
• Violin: 4G, 3D, 2A, 1E
• Ukulele(C): 4G, 3C, 2E, 1A

The specifications of the CHERUB WST-670 are:

• Tuning range: A₀ (27.50 Hz)~C₈ (4186 Hz)
• Detection method: Piezo (Clip)
• Reference pitch: 440Hz
• Tuning Mode: Chromatic, Guitar, Violin, Ukulele
• Tuning precision: +/-1 cent
• Power: Built-in rechargeable Li-Po battery
• Dimension: 49(L) x 26(W) x 40(H) mm
• Weight: 20g

Precautions for using the CHERUB WST-670:

• Do NOT use the tuner in high temperature, or high humidity, or subzero environments.
• Do NOT use the tuner in direct sunlight.
• Please do NOT disassemble the tuner by yourself.
• Please keep this manual for future reference.

The CHERUB WST-670 includes the following accessories:

• Owner’s manual
• USB charging cable

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.