1. _lenovo_x3_pro_bt_headset_true_bone_conduction, _all_sound_is_produced_by_patented_vibrator. _really_achieve_the_ideal_effect_of_not_damage_the_eardrum. 2._16mm_big_moving_unit, _upgrade_the_sound_quality_again_and_make_the_sound_more_penetrating 3. _bt_5.3_technology_bring_faster_pairing_with_your_device_and_more_stable_connection_with_ultra-low_latency. 4. _with_ergonomic_on-ear_design, _apenas_25g_in_weight, _super_stable_and_o_sense_of_weight_wearing_experience. 5. _seven_hours_lasting_endurance_to_meet_your_use_needs, _ip56_sports_waterproof, _effectively_reduce_sound_leakage Especificação: Modelo: _x3_pro Bt_version:_bt5.3 Wireless_range:_≤_10m_ (sem_obstáculos) Frequency_response:_20hz-20khz Microfone Phone_sensitivity:_-42db_±_3 Db Battery_capacity:_135mah Tempo De Escuta: _about_7h Charging_time: _about_2h Waterproof_level:_ip56 Packing_weight:_230g Packing_size:_12* 12* 6cm Package_list: 1_*_x3_pro_bone_conduction_earphones 1_*_charging_cable 1_*_usuário_ Manual
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