The NR-103 Outdoor Wireless Speaker is a versatile and portable audio device designed for various listening environments. It offers multiple connectivity options and features, making it suitable for both indoor and outdoor use.

Function Description:

The NR-103 speaker serves as a multi-functional audio device, capable of streaming music wirelessly, playing audio from various storage media, and functioning as an FM radio. It also includes a hands-free calling feature.

Key Components and Controls:

ON/OFF Switch: Powers the device on or off.
Mode Switch: Allows selection between Wireless, FM, USB, and Micro SD (TF) Card modes.
Pause/Play/Hands-free Call Button:
- Short press: Pauses or plays audio, answers an incoming call.
- Long press: Initiates TWS (True Wireless Stereo) connection.
Previous Song/Volume Decrease Button:
- Short press: Skips to the previous song.
- Long press: Decreases volume.
Next Song/Volume Increase Button:
- Short press: Skips to the next song.
- Long press: Increases volume.
LED Indicator: Provides visual feedback on device status (e.g., charging, mode).
Charging Port: Micro USB port for charging the device.
USB Flash Drive Slot: For playing audio from a USB flash drive.
Micro SD (TF) Card Slot: For playing audio from a Micro SD (TF) card.
AUX Input: For connecting external audio devices via an auxiliary cable.

Important Technical Specifications:

Wireless Version: 5.0 + EDR
Wireless Distance: Up to 10 meters
Output Power / Horn Type: 1 x 3 Watts / 4Ω 52mm
FM Frequency Range: 87-108MHz
Unit Size: L109 x H106 x D60mm
Power Input: DC 5V (1A)
Charging Time: 3 hours
Play Time: Up to 20 hours
Built-In Rechargeable Battery: 3.7V / 1200mAh
Micro SD (TF) Card/USB Drive Support: Up to 32GB
Multiple Functions: Wireless Play, FM Radio, USB Drive, Hands-Free Call, TF card, AUX Input, TWS Connection

Usage Features:

Charging the Speaker:

The speaker has a built-in rechargeable battery. When the battery is low, the speaker will automatically turn off. To recharge, plug the Micro USB end of the included USB rechargeable cable into the charging port and the other end into a USB port on a computer or other USB charging device. A red LED light indicates charging, which takes 2-3 hours to complete. The LED light turns off once fully charged.

Hands-free Calling Function:

Ensure your mobile phone is paired with the wireless speaker.

Incoming Call: Short press the play/pause button to answer; long press for 3 seconds to reject.
On the line: Short press the play/pause button to end the call. Long press '+' to increase volume, long press '-' to decrease volume.
Redial Last Number: In standby mode, short press the play/pause button twice.

Listening to Music Wirelessly (Wireless Mode):

Ensure your device (mobile phone, tablet, etc.) is paired with the speaker.

Play/Pause: Short press the play/pause button.
Previous/Next Song: Short press the previous/next song buttons.
Volume Control: Long press the '+' or '-' buttons.

TWS Connection (True Wireless Stereo):

Turn on two speakers.
Long press the play/pause button on any one of the speakers until you hear "Ding Dong" to connect them in TWS mode.
Search for "NR-103" on your mobile phone and pair with this device.
To exit TWS mode, long press the play/pause button on either speaker until you hear "Ding Dong."

Stream Music from Micro SD (TF) Card or USB Flash Drive:

Turn on the speaker.
Insert a preloaded Micro SD (TF) Card or USB Drive into the corresponding slot.
The speaker will automatically start playing songs, indicated by a "Play by USB drive" or "Play by TF card" sound message.

Listening to FM Radio:

Turn on the speaker.
Insert the Micro USB end of the included USB rechargeable cable into the charging port, leaving the other end open. This cable acts as the FM antenna.
Short press the mode button repeatedly until "The Radio Mode" sound message is heard.
To auto-scan stations, press the play/pause button once. The speaker will scan and register all stations in memory.
Use the previous/next song buttons to skip stations.
Long press '+' or '-' to adjust volume.

Play Music Through "Auxiliary" Mode:

Turn on the speaker.
Insert one end of the auxiliary cable (included) into the AUX input port, and the other end into an audio device (phone, MP3 player, computer, tablet, etc.). A "AUX Input Mode" sound message will be heard.
Select and play your favorite song from the source device.
Long press '+' to increase volume or '-' to decrease volume. Note: In AUX input mode, media control (previous/next track) must be done through the source device.

Maintenance Features:

Safety Instructions:

Keep the speaker away from heat sources, direct sunlight, humidity, water, and any liquids.
Do not operate the speaker if it has been exposed to water, moisture, or other liquids to prevent electric shock, explosion, or injury.
Do not use the speaker if it has been dropped or damaged.
Repairs should only be performed by a qualified electrician.
Do not use the speaker with wet hands.
Do not put objects into any of the openings.
Keep the speaker free from dust, lint, etc.
Do not use the speaker for anything other than its intended use.
Keep the speaker out of reach of children, as it is not a toy.
Batteries should not be exposed to excessive heat (e.g., sunshine, fire).

Care & Maintenance Recommendations:

Avoid exposing the unit to liquid, moisture, or humidity to prevent damage to internal circuits.
Do not use abrasive cleaning solvents.
Avoid exposing the unit to extremely high or low temperatures, as this can shorten the life of electronic devices, damage the battery, or distort plastic parts.
Do not dispose of the unit in fire, as it may explode.
Avoid contact with sharp objects to prevent scratches and damage.
Do not drop the unit, as internal circuits may be damaged.
Do not attempt to disassemble the unit unless you are a professional, as it may cause damage.

Troubleshooting:

Low sound level: Adjust source volume.
Sound distorted: Low battery or battery dead; recharge or replace battery.
No sound at all: Low battery, source turned off, speaker turned off, media paused on source, or short functional obstacles. Recharge battery, turn on source/speaker, play media from source, or restart speaker.
Wireless BT cannot connect: Disable Wireless BT on other source devices and search for Wireless BT again.

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