Bt_5.1_technology_brings_high-speed_data_transfer_speed _stable_performance _and_low_power_consumption. _with_true_wireless_stereo_technology _you_can_use_the_headset_alone_or_use_them_in_pairs. _equipped_with_a_300mah_charging_box_to_store_and_charge_the_earbuds. _built-in_microphone_delivers_a_clearer_and_more_realistic_sound. _it_will_bring_you_a_perfect_user_experience.característicasbt_5.1_technology_ensures_fast_and_stable_transfer _10m_transmission_distance_and_lower_power_consumption.true_wireless_dual_ear_design _the_left_and_right_headphone_channels_are_separated. _ele_pode_ser_usado_sozinho_ou_em_pares.touch_control_design _no_more_pressure_on_your_ears. _easy_to_play_music_and_calls _and_activate_the_voice_assistant.the_built-in_microphone_on_both_noise-canceling_earphones_provides_clearer_conversation_sound_in_stereo_mode.long_battery_life _4_hours_of_music_playback _160_hours_of_standby_time _a_300mah_charging_case_can_charge_and_store_the_earphones.13mm_driver_produces_very_clear _loud_and_balanced_sound _enjoy_hd_music_sound_with_deep_and_strong_bass.especificaçõesnome Da Marca_lenovonúmero_modelo _xt85bt_version_5.1transmission_range_up_to_10m_ (no_obstacle)drive_diameter_13mmfrequency_range _100-20khzsensibilidade_mic_-42db_±_3dbimpedância _32ωsnr _≥_90dbdistorção _≤_ 3%charging_case_battery_capacity_3.7v_300mahearbuds_battery_capacity_ (cada) _3.7v_30mahmusic_playing_time_about_4_hours_ (depending_on_music_volume)cor _black _white_ (opcional)earbud_weight_ (cada) _3.5g/0.12ozpackage_size _138 90 37 Cm/543 354 145 Polpacote_peso _75g_/_2.64 Ozpackage_list1__pair_of_earplugs1__charging_case1__carregamento_cabo1__user_manual_ (inglês/chinês)