inputs.text: works well iphone music car stereo - pleased device purchasing second one vehicle point short list lengthier description belowprocan search find open frequency useplaypause skip last song buttons deviceawesome incoming sound quality phone callsconplaypause skip last song buttons awkward use without bumping frequency dialtuner uses 110 frequency often requires minor adjustment searching new frequencyoutgoing phone call quality poorit easily connected via bluetooth phone allows play music car stereo wirelessly one favorite features push hold tuning knob search next available frequency clear use one thing dont particularly like frequency tuner tunes fm frequencies 110 megahertz usa radio stations seperated 210 car stereo tunes 911 913 915 etc device tune 910 911 912 etc turn knob manually also use search function often lands one middle frequencies adjust knob updown 110 megahertz not huge problem minor annoyance methe playpause next song last song buttons useful bit awkward push times located ring around knob would easy accidentally change frequency trying skip next song etcthe major feature device act speakerphone car stereo ive bad luck feature callers consistently complained couldnt hear well voice sounded like tin shame hear really well wish microphone could pick better pretty loud booming voice hear much better phones builtin speaker handsfreeoverall bluetooth connectivity easy frequency search jewel despite needing adjustment still way faster searching hand basic music control functions wish outgoing call quality better bought music really pleased devices performance want speakerphone primarily look elsewhere callers likely complain