inputs.text: tiny easy use - straightforward bluetooth audio adapter rehemarkable small connect two devices facilitate telephone callsit really tiny 2 long x 1 wide x 38 thick 170 mah lithium ion battery last six eight hours recharge quickly included usb microb cable charge use not sure affect battery lifethere blue led indicator bluetooth red led indicator charging behind onetouch button also controls volume downit pairs instantly \\linkczbt03\\ provides excellent bluetooth transmission normal unobstructed distances 32 feet 10 meters two devices connected not experimented accept 35 mm jack connect audio output automobile systehem desktop speakers even headphone 48 audio cable simple knurled metal connector doublemale includedthere instruction booklet box easy understand although small print however not need use iti really impressed rechargeable bluetooth audio receiver small easy use connect portable audio source almost audio output especially enjoy able use favorite headphones wirelessly excellent example useful modern technology great valuea bluetooth receiver provided evaluation review