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Sign F4 User Manual

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ShenzhenTongkeElectronicsCo.,Ltd
www.sztongke.com
Add:TheSecondIndustrialZone,PhoenixVillage,FuyongTown,Shenzhen,China518103
Tel:8675533856685Fax:8675533893336
UserManual
MODELNO:F4
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Sign F4 Specifications

General IconGeneral
BrandSign
ModelF4
CategorySpeakers
LanguageEnglish

Summary

Product Overview

Key Features

Details Bluetooth V4.0, FM radio, rechargeable battery, and connectivity options.

Packing Contents

Lists the items included in the package such as user manual, adapter, and audio cable.

Electrical Specifications

Audio Performance Details

Specifies driver size, RMS output, system SNR, THD, loudness, and frequency response.

Power Source and Charging

Describes the built-in lithium battery and AC/DC adaptor charging specifications.

Operation and Controls

Explains the power on/off, charging ports, DC-in, LED indicators, and AUX-IN connection.

Mode Operation Instructions

Guides on using Bluetooth, FM Radio, and AUX-in modes with button functions.

Indicator Lights and Voice Prompts

Details LED charging/mode indicators and voice prompts for Bluetooth connectivity status.

FCC Compliance Information

FCC Warning Statement

States compliance with FCC rules and conditions for operation to avoid interference.