Parameter Product model: TW13 Bluetooth headset Bluetooth solution: Bluetooth 5.0, Jerry 6936D4, high-definition binaural call, master-slave switching Speaker: high-quality true copper ring speaker Chip: true stereo chip Charging warehouse standby time: 30+ days Earphone usage time: 3-5 hours. The base charger can charge the earphone 4 times. Headphone charging time: 40~50 minutes Headphone battery capacity: 45 mA of pure cobalt Charging box battery capacity: pure cobalt 400 mA (with IC protection board) Transmission distance: barrier-free distance 10-18 meters Package weight: 100g Product accessories: 3 sets of ear caps + data cable + manual Product operation function: Single click: play/pause, answer/hang up Double-click: double-click the previous song on the left ear, double-click the next song on the right ear Triple-click: the left ear triple-clicks the volume to decrease, the right ear triple-clicks the volume to increase Long press for 3 seconds: wake up Siri