Product parameters Bluetooth Solution: Actions RL5003 Bluetooth version: Bluetooth 5.0 Playback power consumption: 0-14mA Call power consumption: 8-13mA Standby current: 0.36 Receive sensitivity: -85dBm Audio signal to noise ratio: 94dB Noise reduction: DSP intelligent noise reduction Product net weight: 33g With packaging: 87g Packing size: 10.6x8.6x2.8cm Sounding unit Type: Custom version 10MM true copper ring HIFI unit Acoustic structure: closed Magnet type: NdFeB Frequency response: 20Hz-20kHz Sensitivity: 112dB Output power: regular 3mW, maximum 5mW Microphone Type: MEMS Digital Silicon Number of channels: two channels (stereo) Sensitivity: -42 Battery Single ear power: 40mAh Charging capacity: 250mAh Play time: 3 hours The charging compartment can charge the headset 2 to 3 times, and the total battery life is 12 hours. Instructions for use After receiving the goods, take out the earphones, the earphones will automatically turn on; the left ear does not flash, and the right ear red and blue lights alternately flash. Turn on the phone Bluetooth and search for "i9-touch" click to connect.Specification: Package Weight One Package Weight 0.13kgs / 0.29lb One Package Size 13cm * 11cm * 6cm / 5.12inch * 4.33inch * 2.36inch Qty per Carton 100 Carton Weight 13.50kgs / 29.76lb Carton Size 62cm * 57cm * 28cm / 24.41inch * 22.44inch * 11.02inch Loading Container 20GP: 269 cartons * 100 pcs = 26900 pcs40HQ: 625 cartons * 100 pcs = 62500 pcs