Disclosed is a case for a handset of a cordless phone which adapts the cordless phone handset for hands free use. The case is open on one side to receive the cordless handset which is then secured into place by foldable flaps at each end of the case. A microphone is within the flap next to the earpiece of the cordless handset and a speaker is within the flap next to the mouthpiece. The microphone and speaker are wired to a telephone headset. The case is secured to the body of the user and the headset positioned on the head of the user. When the cordless handset is activated, the user utilizes the headset for hand's free use of the cordless phone. The user may move about freely within the range of the cordless phone with both hands free for other tasks.

This invention relates to a phone holder. The phone holder includes a holder main body with an outer box. The holder main body is provided with movable members such as side walls which are movable in a direction orthogonal to a direction of inserting a mobile phone. The position of the movable members is adjusted by a position adjuster such as a screw shaft.

A cellular phone retaining rack permits a driver of a vehicle to operate a cellular phone in a handfree manner. A mounting base is inserted into a fissure between a door and the glass thereof and a clamping board is adjustably secured to the mounting base. A hollow pivot arm having a spring housed therein is pivotally engaged with the mounting base. To each end of the spring is fixed a detent member. A securing piece is fixed to one side or the bottom of a phone retaining seat and one end of the securing piece is pivotally engaged with one end of the pivot arm. A ratchet gear is disposed at one end of the securing piece which can be in locking engaged with one detent member of the pivot arm so as to lock the retaining seat in place after each adjustment. The detent member at the other end of the pivot arm is engaged with an oblique lug having a recess at one end extended from the mounting base so as to retain the pivot arm in place after each pivot adjustment thereof. A voice pick-up is brought to abut against the receiver of a cellular phone and a speaker electrically connected to the voice pick-up is mounted to the clamping board so that the cellular phone can be easily moved to the mouth of a driver by adjusting the pivot arm and the phone retaining seat.

A mobile telephone battery charger including a power input plug assembly for connecting to a car's battery power supply outlet, a charging connector assembly connected to the power input plug assembly by a cord for connecting to the battery charging port of a mobile telephone, a speaker and a control circuit being installed in the power input plug assembly and a microphone being installed in the charging connector assembly for a hand-free communication at a distance through the mobile telephone by means of the mode selection of a switch on the power input plug assembly.

A retaining apparatus for holding and making contact with a radio telephone comprises a shell having a slide into which the radio telephone is inserted wherein the slide is displaced linearly with respect to the inserted radio telephone, and wherein either the slide or the shell has at least one contact unit for data and power transmission and for electrical and optical coupling to at least one interface on the radio telephone.