A11pro Bluetooth Headset Touchscreen Geräischreduktioun ANC Uruff Multifunktiounsdisplay Kabellos Headset

Model: A11 "ANC + Dual Mark ENC +" Color: White Chip: Jerry 7003D8 noise reduction + light sensing in-ear detection Version: 5.4 [Binaural Talk] Operating frequency: 402-2.480 GHz, Support protocols: A2DP/AVRCP/HFP/HID/AVCTP /AVDTP, and SPP Transmission distance: 15M [barrier-free] Response frequency: 20~ 20000Hz Speaker unit: φ F13 titanium laminated film, 32Ω ± 15%, 7.118 ± 3DB 5mW Microphone: 2718 silicon Mi-42 ± 3dB Charging input standard: touchpoint, DC4.75-5.25 V/600MAH Battery type: 3.7V polymer battery 500mAH with protection plate (3C fast charging battery), earphone battery 35mah Charging time: 1h Headphone working time: measured 100% volume continuous playback for about 5.5 hours Packing size: 52 * 48 * 22.5CM Packing quantity: 100pcs Packing weight: 17.5KG/box