Smallest, lightest amplifier we carry Convenient rechargeable battery with long use time Headset mic reduces wind noise for clear sound This compact voice magnifier is the smallest, most discreet model we carry. It enhances weak voices, allowing the speaker to be easily included in everyday conversations. The lightweight speaker is designed primarily to be worn around the neck, though it can be clipped on a belt or placed on a table. Wearing the speaker around the neck is recommended since the sound of the voice is close to the visual source. This encourages lip reading, resulting in improved communication. Features: Durable headset mic with high performance windscreen 12 hours of use with rechargeable battery 6-8 hours of recharge time 3.5mm mic jack (stereo or mono) Dimensions: 3" x 3" x 1.378" Weight: 6 oz Feature Details Brand ChatterVox Mfg part # AMPLIO1 Warranty One year limited warranty Color Grey / Silver Weight (lbs) 1.08 Battery operated? Yes (batteries required) Batteries included? Yes Battery details (1) 1000 mAh Lithium Ion Country of Manufacture China