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SP353-B-BLACK/GREY

1

4

5

678

2 3

9 10

1.ON/OFF button

2.Play/Pause/Phone

3.MIC

4.Previous/Volume –

5.Next/

6.Red LED(Charging)

7.Green LED(AUX)

8.Blue LED(Bluetooth)

9.Micro USB Charging Port

10.AUX in Port

Included:

1.Speaker

2.USB Micro Charging Cable

3.3.5 mm Audio Cable

4.User Manual 

5.Warranty Card

Specifications

Operation

Press and Hold "ON/OFF" button 2 seconds to power ON, the

Blue LED will start to flash.

If an Aux (3.5 mm) cable is connected to the unit, the Blue LED

will turn off, and the Green LED will stay illuminated, notifying 

you, the uint is in Aux-In mode.

Press and Hold "ON/OFF" button 2 seconds to power OFF   

Power Off

Power On

Bluetooth Mode

The unit will automatically go into “Pairing Mode” when it is

powered ON.

Go into your Bluetooth device settings menu and look for

“Sylvania SP353”   

Pairing

After the unit has paired and connected, it will re-connect

automatically when the unit is powered on and the device

is in range. 

Note: - Bluetooth Timeout: 10 minutes

         - You can press and hold the “      ” button to unpair your 

           current device and search for new devices in 

           Bluetooth mode. 

Begin Streaming Music

Press “       ” to start playing music 

Press and Hold“       ”  2 seconds to play the next track 

Press and Hold“       ” 2 seconds to play previous track 

Press either “      ” or “      ” for volume control

Note: You will hear an audible alert when the maximum / minimum 

volume level has been reached.

Making and Receiving Phone Calls

When the unit is connected and paired to your device, 

the unit allows you to make or receive phone calls with its 

built-in microphone.

Press “      ” to accept a call

To end a call press“      ” 

To reject a call, press and hold “      ” for 2 seconds

Aux-In Mode

Plug in the supplied 3.5 mm cable into the unit. The other end is 

connected to your device. The Green LED will only illuminate 

when in “Aux” mode.

Please note music and volume can be controlled by your device.

Charging

Attach the USB cable to the unit, and plug into any USB charger. 

If the unit is completely discharged,  it will take approximately 5 

hours to fully charge at 5V/500mA.
The Red LED will illuminate during charging, when it has 

completed, the Red LED will turn off.
Note: There will be a beep when the battery is low and needs to 

For service assistance and product information, 

please call: 1-800-968-9853.

Curtis International Ltd.

7045 BECKETT DRIVE, UNIT 15, MISSISSAUGA, ON, L5S 2A3 

www.curtisint.com

be recharged.

LED Status

Blue LED flashing & Blue LED solid

Green LED on solid

Red LED off

Aux Mode

Bluetooth Mode

Fully charged

Red LED

Charging

Troubleshooting

Unit doesn’t connect  to device

Speaker needs to be connected/

re-paired to device

A tone is heard every few seconds

Speaker needs to be charged

Unit will not power on

Speaker needs to be charged

Unit doesn’t control track(s)/volume

Speaker needs to be in Bluetooth

mode for full control

Unit distorts at high volume 

The devices’ volume needs to

be lowered

Description:

Introduction

Important Waterproof/Safety Information

Important: DO NOT submerge the SP353-B-BLACK/GREY speaker in 

water, this unit is not intended to function properly after being under 

water. SP353-B-BLACK/GREY is rated IPX6, which means the speaker 

can be heavily splashed with water or left in the rain (but not 

submerged in water) for approximately a limited time. If the 

SP353-B-BLACK/GREY gets wet, it is recommended that you dry the 

speaker completely before using it again.

Please note: Speaker is not water-resistant when the silicone cover

is open. Please make sure that cover is closed and secure before

using in a wet environment.

Thank you for choosing the SP353-B-BLACK/GREY as your source 

for entertainment! You can use this item with iPads, iPhones, iPods 

and many types of smartphone to stream music and enjoy 

handsfree calling. In order to get the best results when using the 

device, please read this manual first before using.

SYLVANIA is a registered trademark of OSRAM Sylvania Inc. used under license.

Water Resistant & Rugged Wireless Speaker

Bluetooth Version : 4.2

Supported Profiles: A2DP, HFP, AVRCP

Bluetooth Range:33ft (10m)

Dimensions: 180 mm x 70 mm

Battery: 600mah rechargeable lithium battery

Charging: DC 5V      500mA

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