Product model: Earbuds X1 Color: White Net weight: 47.1 g Wireless connection: Bluetooth 5.0 Battery life: Music playback 5 hours,up to 24 hours when used with the charging case Bluetooth protocol: BLE/HFP/AVRCP Encoders support: the SBC and AAC Speaker impedance: 16 ohms Earphone battery: 55 mAh Charging case battery: 500 mAh Implement standard: Q/JH 2-2020 Playing music: (1) Press the R/L button for two consecutive times to pause. (2) Press and hold the R button for 2 seconds to play the previous song. (3) Press and hold the L button for 2 seconds to play the next song. Play: The indicator is off. Pause:The indicator blinks white once for every 5 seconds. (The volume is controlled on the phone.) Call control: Answering a call: Press R/L twice to answer the call. Hang-up: Press the button twice. Incoming call, outgoing call, the white indicator blinks twice for 5 seconds Cancel outgoing calls: Press the button twice and the white indicator blinks twice for every 5 seconds. To reject an incoming call, press and hold the button for 2 seconds and the white indicator blinks twice for 5 seconds (the volume is controlled on the phone). Siri and voice assistant: When your phone is connected to your phone, you can press and hold the button three times to use Siri.