$args = array(
'post_type' => 'post',
'orderby' => 'rand',
'posts_per_page' => '4',
'meta_query' => array('key' => 'price', 'value' => array( $loprice, $hiprice ), 'type' => 'numeric', 'compare' => 'BETWEEN')
);

$pricequery = new WP_Query( $args ); ?>

<ul>
<?php while ($pricequery->have_posts()) : $pricequery->the_post();
    $postid2 = get_the_ID();  ?>
    <li><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a>
         &nbsp;цена: <?php $itemprice = get_post_meta($postid2,'price',true ); echo $itemprice; ?></li>                
<?php endwhile; ?>
</ul>