mechanism bluetooth version : v . speaker dimension: omm frequency response: . hz- . ghz sensitivity: db s.p.l at khz effective distance: within m bluetooth protocol: hsp/hfp/a dp/avrcp working time: - hrs standby time: up to hrs charging time: appr . hrs charging input voltage: dc v battery capacity: ma line-in...
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, flat business rate rate it: fl one flat line rate it: g second generation rate it: g second-generation mobile telephone system rate it: w two wire rate it: g third generation (mobile communication system) rate it: g rd generation rate it: g hspa third-generation high-speed packet access rate it: gip...