--Features: One second burst, and quick auxiliary,--Physical buttons: for latency-free control--Metal buttons: mechanical black shaft design, easy to operate.--Universal application: suitable for most smart phones.--Key position: with 4 input heads, easy to control and with sensitive quick-attach design.Description: Name: Gaming Trigger Applicable products: smart phones Product with packaging size: 95*75*35mm Product weight: 41g (including packaging) Shipping list: packing box + button Material: ABS+metal Key position: four input headsPacking list:2 x Gaming Trigger1 x packing boxNote:The color deviation is subject to actual system configuration and 1-3cm slight dimension difference is allowed due to manual measurement.