SoundPeats Audio via Amazon offers its Soundpeats Qy7 Bluetooth Sport Earbuds in Black for $35.99. Coupon code "QY7BKPRO" cuts the price to $29.99. With free shipping, that's $6 off and among the least expensive Bluetooth earbuds we've seen. These sweat-proof earbuds feature up to eight hours of playtime on a full charge and up to 150 hours standby time.