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How do I find the external speaker on my Android phone?

This article will help you locate the external speaker on your Android phone in order to set up your Roost device. If you need general help on your phone's speaker and are not a Roost customer please contact your cellular provider.

The external speaker on your phone is the same speaker that’s used for audio when your phone is placed on speakerphone.

  • Samsung: the speaker is typically located at the bottom of the phone to the right of where you plug in your charger.
  • HTC: this manufacturer typically designs the speaker into the front of the phone on the top and/or bottom
  • LG: the speakers are typically located on the back of the phone near the bottom or at the bottom near to where you plug in your charger.

If you’re not sure where your external speakers are located, the easiest way to find them is to turn on the speakerphone when you’re on a call. The speakerphone audio will be coming from the external speaker on the phone.

To turn on your speakerphone, first dial a number and press the call button. You’ll then see an option for “Speaker” or an image of a speaker. Simply press this button to turn on speakerphone.

Once you identify where your speaker is located, place your phone face up on a hard surface such as a table, and orient your phone so that the speaker is ~1/2 inch from the sound hole on the side of the Roost Smart Battery.

If your speaker is on the underside (back) of the phone, that's ok. Keep the phone face up, and just get your smart battery as close to that speaker as possible. The in-app photo shows this type of setup, as the Samsung speaker is located on the underside (back) of the phone. If you get 0 or 2 beeps, you may also want to try to connect with the battery sound hole pointing to the ceiling and your phone speaker (on the back side of the phone) laying over the sound hole. 

If you have 2 speakers (typically at the top and bottom of the phone), choose one of the speaker locations of the two and place the battery near that one speaker.

Continue with the set-up steps outlined in our Get Started page > Step 2: Connect your Smart Battery  > Set up Connection. You may also find instructions in our Help Center under Step 2: Connect your Smart Battery > Set up Connection.


Samsung Galaxy Note 4 speaker location:


Samsung S5 speaker location:


Samsung S8, S7, S6, Note 5 speaker location:


Google Pixel:



LG Stylo 2V:


LG G5 V20:





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