1.Mini & Light-weight - Only 66x 26x 14mm and 25g. designed in a convenient size for easy portability. No matter putting it in the pocket or string it aroud the neck, talk with others with the earpiece. Thanks to the mini size, we are to hide it where we . It will not affect your beautiful dress. 2.Whom is This Radio For? - This radio is perfect for looking to their communication. Also these mini radios are easy to hide in the pocket and will not affect the dress. What's more, VV-108 ensures that can maintain clear and organized communications. VV-108 perfects for hotel , shopping , supermarkt , hairdressing , hospital or anyone needing to coordinate communications between multiple or units. 3.Working Time - The battery capacity is 500mAh the radios are to work last 8 hours. VV-108 is really a good indoor tool for working and communicating. 4.USB Charge - VV-108 can be with USB cable. It is not only convenient also safe. Everyone can feel relieved while charging. Specification Color: black Material: plastic Frequency Range: UHF 400-480MHz Transmission power: 0.5W Channel: 16 Channel Battery: 500mAh Operation mode: Time-out timer() function Auto power off () Support USB charging cable Dimension: 66x 26x 14mm Weight:25g Basic Operation Adjusting Volume: Press"" key to increase volume,"" to reduce volume Select Frequency Press "" key to increase channel."" to reduce channel. Channel number will be announced when channel changed. Transmitting and receiving To transmit, press and hold the PTT key on the microphone of the earphone and speak nomally. Releae the PTT key to stop transmitting. For best voice quality, hold the microphone about 2 IN (5cm) from your mouth and speak normally. Radios can only communicate in the same channel. If you 't know the current channel number. Long press the M key will transmit a call with "Ting--" to other radios. A red LED indicates that the transmitter is active. A green LED indicates that the radio is receiving signal. Package Contents: 2 x Talkie Walkie Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.