Used as a Normal Wired Speaker

The speaker receiver can be independently used as a wired speaker for PC, Laptop, Mobile phone, iPad, MP3 etc.

Super Big Volume Knob Makes Operation Easy ; TONE (Treble/Normal/Bass) Control Enhances Clarify of TV Sound

The big knob with one dial operation of ON/OFF and volume control in the centre area of the speaker makes you operate the speaker by your fingertips easily.

The TONE switch is specially designed to deliver improved dialog clarity for people who have different sound frequency sensitiveness. Select Treble to enhance female voice and kids’ voice, select Bass to enhance male voice.

Rechargeable & Replaceable Battery / Two User-friendly Charging Solutions / Intelligent Power Saving

The built-in rechargeable Li-ion battery supports about 5~6 hours continuously working. It can be replaced easily. (our store has replacement batteries on sold)

The transmitter is also a charging base for the speaker, and it includes a second AC Adapter that can plug into the speaker for charging as well as power supplying.

For power saving, if there is no audio signal within 5 minutes, the transmitter will automatically enter the standby mode.

Multiple Audio Out Ports Supports

Compatible with most TVs on the market, the SIMOLIO SM-621D supports Optical, RCA and 3.5 mm / AUX audio outputs. For Optical connection, make sure the audio format of your TV/TV related AV device must be set to “PCM”.

For RCA connection, make sure the RCA ports are labeled as ”AUDIO OUT/OUTPUT/AV OUT”.

For 3.5mm/AUX connection, it’s better to try it with a wired headphone to see whether it will disable your TV internal speakers. For TVs with only Optical audio out and occupied by a sound bar, you will need to purchase an optical splitter for installation.

For TVs with only Coaxial output, you will need to purchase a Digital to Analog Audio Converter for installation.

For TVs with only HDMI (ARC) audio out, you will need to purchase an HDMI to RCA converter for installation.

For AV receivers with a 6.35mm phone jack at the front, you will need to purchase a 6.35mm to 3.5mm audio adapter for installation.

TV Sound Out and Audio Format Setting

For TVs that support only single sound out, we don’t recommend to use this SIMOLIO unit to watch tv together with your family. Unless you have a sound bar + splitter.

For some TVs, you can play audio through TV internal speakers and an external audio device simultaneously by setting the “Sound Out” to “Internal TV Speaker + Audio Out(Optical)”. For digital optical connection, make sure to set your TV/TV related AV device’s audio format to PCM. Dolby / DTS is not supported. The menus for sound out and audio format setting are not the same from different TV brands. please refer to your TV manual for details.

TV & TV Related AV Devices' Volume Setting

Sufficient sound output is needed to ensure Simolio working properly.

VOL.1 > 40%, VOL.2 > 30%, just for your reference. The bigger the VOL.1 and VOL.2, the better the S/N (Signal-to-Noise) of your Simolio unit.

Usually we suggest to fix the VOL.1 to a sufficient level, and adjust VOL.2 to control TV's volume.

If the audio output signal is too weak, it will cause the following problems:

1. no sound from the speaker.
2. the sound of the speaker cuts in and out.
3. the speaker automatically shuts off every few minutes.