[Samsung Galaxy S7 Accessories] Quaitgor:
They are not exclusive to Samsung, you can pair them with a computer as well for example. They are simple Bluetooth devices and should pair like other speakers. You pair with the main earpiece and the second one either pairs with your device as well automatically or its connected to the other piece (I don't know yet which one exactly yet, had not enough time to play with them, but most likely the second case). The app to controll/setup them is an app created by Samsung, but should run on other android devices, its called "Samsung Gear", try downloading it. Maybe there is a Iphone port of it as well. The app is used for more precise/easier settings and allow direct filetransfer from phone to earbuds, but this can be done with a pc as well. The buds worked with my S5 without the app (yeah, its a Samsung as well, but not on Stock Samsung Android etc, it should be representative enough of other android devices)

they have a sensor, did you store them outside the case and something touched the sensor?

my friend told me it was 2 hours for her when streaming music to the ear buds (worst case for power consumption and they are not really designed for this kind of use but support it), streaming means the music is only saved on your phone and they actively use the bluetooth connection to hear music.

4 hours when not streaming (music is on internal memory of both buds) but bluetooth connection activated (for incomming calls for example) and about an extra hour when the phone is not connected via bluetooth (no phone calls).

the recharge case can recharge them 2-3 times before running low.

Edit: maybe a bit of info about how they actually communicate and how that affects power usage(as far as I can tell)

One of the pair is designated Main or Master (I dont know which one is by default) and you can switch Master at any time with the app.

What I call "Normal mode":

When listening to music and both ear pieces have the song in their 4gb storage (they each have 4gb and show up as two usb storages when connected to a PC) they use the least power while not connected to a phone (or similar device). They seem to playback the music independently of each other, only synching start, stop, song switches and volume (commands in general). They don't actively send or receive music from the other earpiece and seem to use only a little bit of power for a stand-by connection.

I tested this with walking away from the other earpiece. After they lost their connection to each other they did not stop playback, but I was able to control the earpiece I took with me separately from the earpiece I left with my friend (switching songs worked, and did not affect the other piece, since there was no connection). A few seconds after entering the range of the other earpiece mine stoped playback and connected with the other piece, interrupting my playback automatically ("Connected" voice and switched song and jumped to the correct position in the song). The other piece was set as the master, that's why mine changed playback most likely and not the other way around.

In this mode you can use all gestures (tapping, holding finger on button, flicking up and down) on both earpieces.

The "extended" version of normal mode is having a phone connected via bluetooth.

This drains a little bit more power (most likely because the master piece has to use another standby-connection to the phone). You can send commands like switching songs, volume changes etc with your phone and if there is an incoming call you can use them like any headset devices. The music on the phone is ignored in this "mode", the earpieces play their music. Gestures work on both pieces.

Leaving the range of the phone or other earpiece is the same as above.

When playing music on the phone and the earpieces have the song in their storage its the same. (no additional powerdrain, since no music is streamed to any other device)

When playing music on the phone and the earpieces do not have the same song in their storage the music is streamed to the buds, this uses quite a bit more power. The phone needs more power as well, since its busy sending to the earpieces, and they are busy receiving. Calls are of course still possible like this. Gestures work on both pieces, they now control playback on the phone.

The next case is a relatively unlikely version, but I tested it simply because I could =)

Putting different songs on the earpieces does work, but its not really useful (does not increase the storage without draining much more power).

If only one earpiece is turned on it can simply play music like normal from its storage (master or not).

If you play music on the non-master and the master gets turned on (or it comes into the range, same rule as in "normal mode" above) they will sync (playback stops). Only the master can now play music, the other one stays silent (because it cant play the same song). If there is a connection to the phone the master will use the phone to stream to the other earpiece, draining all 3 devices quickly (more than with simple streaming mentioned above), this is the worst case power drain by far. This method worked only half the time, I don't know why the streaming to the other earpiece refused to work sometime, but since its such a power drain its not really usable anyway.

you can use one earpiece at a time as well. you can recharge one earpiece while the other is in your ear. (the seperate music on each piece mentioned above means double the music in this case) If you connect it with bluetooth you can be available for phonecalls all day while listening to music on one ear only. Some people may appreciate this.