1. Input interface: 3.5mm 4pin straight head
2. Microphone: 1 MEMS microphone
3. Key: function key: answer/reject/hang up;When music plays: switch the previous one/the next one, pause/play function of music, etc.;Volume +/- : increase/decrease volume
4. Loudspeaker: 2 loudspeakers with moving coil
5. Operating temperature: -10 ~ 55 Celsius
6. Packaging: glory heart clear earphone X1, silicone ear support X1, silicone ear support X1, silicone ear support X1, silicone ear support X1, silicone ear cover X1, silicone ear cover X1, silicone ear cover X1, warranty card & instruction X1
