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Classic: Plug the headphones in securely and power them on, only receiving the DSE exam channel (Radio Hong Kong Channel 2), automatically locking onto the channel with the strongest signal and clearest reception. No adjustments are required; the only controls are an on/off button and volume button on the top.

PRO: Similarly, upon powering on, the device will only receive the DSE exam channel (Radio Hong Kong Channel 2), automatically locking onto the channel with the strongest signal and clearest reception. However, a new triangle button on the front allows for manual tuning through the seven different exam channels. Users can test each of the seven channels to see if they're comfortable. If you can't determine the best channel, simply power it off and on again, and the system will automatically select the channel with the strongest signal and clearest reception.

It varies depending on the shipping method you selected at the time of purchase.

Hong Kong Post Standard Mail: 8 - 11 working days

Hong Kong Post Registered: 5 - 7 working days

SF Express: 2-3 business days

During the epidemic period, delivery time may be extended, please be patient.

But no later than:

Hong Kong Post Standard Mail: 14 working days

Hong Kong Post Registered Mail: 10 working days

SF Express: 7 working days

If you have not received it after the time below, please contact us

Tel: 27368212

Email: sales5@aitkenson.com.hk

Address: 1101 Pilkem Commercial Centre, 8 Pilkem Street, Jordan MTR C2, Kowloon, Hong Kong.

*Working days are defined as days other than statutory holidays (i.e. red days)

Please select the quantity in the upper selection box only. The 1-character position below is the SET number. The upper limit in the selection box is 6.

If you wish to purchase more than 6 units, please add them to the shopping cart multiple times to achieve the desired result.

Note: There are no discounts for single units. Therefore, when purchasing multiple units (e.g. 7 units), please purchase them in a 3+4 or 5+2 tower package to get the maximum discount.

If you change the number below, the amount will be calculated by multiplying the upper amount by the lower amount.

For example, if the upper quantity is 3, then the lower quantity is changed to 3. The result is 3 x 3 = 9.

First, check if the DSE number is displayed on your radio screen, as shown in the figure:

If there is only a blank screen, please check whether the battery is installed correctly and whether the battery is charged.

First, check that the headphone cable is fully inserted and cannot be inserted any further.

The headphone cable is firmly plugged in as shown below:

If there is still no sound/only noise, press the switch once to turn the device off and then back on.

Because this radio uses the headphone cable as an antenna, you need to plug in the headphones before turning it on.

Only then can we search for the best signal for you.

Aitkenson DSE 5** Classic and

Aitkenson DSE 5** PRO

All use AAA batteries/size 7 batteries as power source.

After testing by our company, using GP alkaline AAA batteries for testing,

It can play continuously for 30 hours at maximum volume when powered on.

Please distinguish between alkaline and carbon batteries.

Generally, alkaline batteries have a higher capacity than carbon batteries.

However, this product can be used with both types of batteries, but the playback time may vary.

A pair of earphones is included in the box.