I7-to-ear wireless Bluetooth headset (V5.0 Bluetooth chip). Product Features: Bluetooth version: 5.0 version Transmission distance: outdoor straight line distance 10-18 meters Battery capacity: polymer lithium battery 40mah Charging box battery capacity: 350mah Listening to music time: 2 hours Up and down music / pause playback Call time: 2 hours Standby time: 130 hours Charging time: 1 hour Working current: 22MA Standby current: 4uA Speaker: 10mm copper ring speaker Stereo: Yes
Bluetooth class---Bluetooth level: class2 and class3 Frequency band---band/band: 2.4—2.485GHz Modulation process---modulation process: GFSK Max. transmitter power---maximum transmit power: +2DBm Pairing method: automatic pairing at boot Prompt tone: Boot prompt: POWER ON Shutdown hint: power off Pairing status prompt: paring Connection prompt: you device is connect Disconnected prompt: you device is disconnect Low battery prompt: battery low Button function: long press to power on, long press to turn off, click music pause / play / call answer / hang up the phone, double click the next song. Charging instructions: Headphone charging indicator: The headphone charging red light is on, and the red light is off when the battery is full. Charging box charging instructions: 1. When the charging box is charging the earphone: the green LED light on the charging box flashes, and the green LED light goes out after the earphone is full. 2. When charging the charging box: The green LED on the charging box flashes, and the green LED lights up when the charging box is full.