The SIMOLIO SM-621 is a 2.4GHz Wireless TV Speaker designed to provide a clear and crisp TV audio experience without the need for heavy headphones or excessively loud TV volumes. It utilizes advanced Frequency Hopping Spread Spectrum (FHSS) technology for strong anti-interference capabilities, offering wireless freedom and crystal-clear voice within a range of up to 100 feet.
Function Description:
The primary function of the SM-621 is to deliver TV audio directly to the user, allowing for personalized volume control and an improved listening experience, especially for individuals with hearing difficulties. It aims to reduce lip-sync delay and prevent disturbance to others in the household. The device consists of a transmitter and a portable, rechargeable receiver (speaker).
Important Technical Specifications:
- Transmission Mode: Automatic Frequency Hopping Spread Spectrum
- Carrier Frequency: 2.4GHz ISM BAND
- Dual Speakers: 2x5 Watt, 6 Ohm
- Transmitter Operating Voltage: 9V/1.5A, 110/240V power adapter with a DC 4.0x1.7mm barrel jack
- Receiver Operating Voltage: 7.4V/1000mAh Li-Battery (rechargeable), 9V/1.5A, 110/240V power adapter with a DC 4.0x1.7mm barrel jack
- Frequency Response: 20 Hz - 20 KHz
- Distortion: <1%
- Signal-to-noise ratio: ≥70dB
- Wireless Range: Up to 100 Feet (without obstacles)
- Receiver Working Time: 6 hours (on full charge)
- Charging Time: 3 hours
Usage Features:
- Compatibility: Compatible with analog RCA (labeled "AUDIO OUT") and 3.5mm/AUX audio output ports.
- Easy Volume Control: Features a large dial knob on the receiver for power ON/OFF and volume adjustment, allowing for easy fingertip control.
- Portability: The receiver is a rechargeable and portable wireless speaker with a handle, making it convenient to carry anywhere, including outdoors.
- Voice Highlighting Tech: Incorporates a special circuit that reduces background TV noise and enhances dialogues, making hard-to-hear words stand out for better understanding.
- Automatic Signal Control (ASC): This circuit stabilizes output volume by adjusting sudden changes in volume, preventing strong signals from harming the user's hearing.
- TONE Control: Offers three levels of TONE control (Treble/Normal/Bass) to cater to different sound frequency sensitivities, allowing users to find optimal parameters for clear audio. Treble enhances female and child voices, while Bass enhances male voices.
- Headset Connectivity: The receiver has an AUDIO OUT jack, allowing an ordinary headset or the supplied stethoscope headset to be connected, effectively turning it into a wireless TV headset with volume control via the speaker's knob. This enables private listening without disturbing others.
- Wired Speaker Functionality: An AUDIO IN jack on the receiver allows connection to audio devices like PCs, MP3 players, mobile phones, or iPads, transforming the receiver into a wired speaker.
- Automatic Standby: The speaker automatically enters standby mode after 10 minutes without receiving a signal.
- Simultaneous Use: Two sets of SIMOLIO SM-621 speakers can be used simultaneously in the same house, provided they are placed at least 10 meters apart to avoid interference. One transmitter can support multiple speakers.
- Flexible Charging: The speaker can be charged either by placing it on the transmitter base or by plugging it directly into a wall outlet using the additional power adapter, eliminating the need to return it to a charging cradle.
- TV Speaker Muting: For quiet viewing, users can mute their TV by pressing the MUTE button on the remote control or selecting a speaker option other than "TV Speaker" in the TV Sound Output settings.
- Digital Audio Out Support: For TVs with only Digital Optical or Coaxial Audio Out ports, a Digital to Analog Converter (DAC) is required for installation. The audio format should be set to "PCM" or "Dolby/DTS" OFF.
- AV Receiver Compatibility: Can connect to an AV Receiver with a 6.35mm PHONE jack using a 6.35mm to 3.5mm adapter (not compatible with RCA L/R ports on AV Receiver).
Maintenance Features:
- Cleaning: Before cleaning, disconnect the transmitter from the power adapter and use only a slightly damp cloth.
- Battery Replacement: The receiver uses a replaceable and rechargeable Li-battery.
- Ear Tip Replacement: The stethoscope headset comes with super-soft memory foam ear tips that reduce irritation and fatigue, but they are not durable and are recommended to be replaced every 30-60 days.
- Storage: When not in use for a long time, switch off both the transmitter and receiver and unplug the power adapter from the wall socket.
- Placement: Products should be kept dry and away from extreme temperatures. They should be set up on a stable, clean, dust-free surface. Ensure adequate ventilation during use. Keep the product away from microwave ovens, mobile phones, and WiFi routers to avoid electronic wave interference.
- Safety: Built-in special circuit with short-circuit protection in the base for safety. Only qualified personnel should service the unit; do not attempt to open it. Consult a physician before using with a pacemaker or other medical device.
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