These do not have flashing LEDs. After pairing the EarBuds with your BT device, the EarBuds can now automatically connect to your BT device. In short, all the options of the much more expensive EarPods from Apple but indistinguishable and also in terms of quality these earbuds are not inferior to the EarPods from Apple. Very nice design, long battery time and fast charging via the supplied charge box. Range: about 10 meters Play time: 3 hours Standby time: 500 minutes Package contents: 2x Mini Bluetooth Earphone 1x Charging box 1x Lightning Charging cable 1x User manual Listen to the correct song, record songs and phone calls, Remember the call number, the last call, all the Chinese and English smart voice messages, boot, pair, turn off the phone power will send a low voice message; The power capacity will be displayed on your Iphone, you can see the energy status at any time, don't worry about the power, let your life worry-free; After the Bluetooth headset is turned off, connect to the mobile phone, connect the Bluetooth headset and then automatically turn on the mobile phone, which is more convenient; Smart compatibility: compatible with all mobile phones, including Bluetooth, tablets, notebooks, singing, QQ music, movies, etc., universal mobile phones SKU 100744199_NP-1021198324 Compatible Devices Not Specified Model I11