This Godox DMR-16 is only a receiver with 16 channels. It need to match the corresponding transmitter to control studio flash. Features: Long distance, a full range of barrier free trigger flash strobes and rechargeable flashlight. The receiver is used with alternating current. It achieves quick response under the advanced MCU control. It can meet the need of sync flash for any different shutter camera. Suitable for Godox DM-16 flash trigger. Specifications: Model: Godox DMR-16 Receiver Power: AC 100-240V, 50/60Hz PC Cord Jack: 6.35mm / 3.5mm Outdoor Operation Distance: ≤30m (Open space) Indoor Operation Distance: ≤20m (Open space) Sync Speed: 1/200s Item Size: 7.2 * 5.9 * 3.4cm / 2.8 * 2.3 * 1.3in Item Weight: 102.5g / 3.6oz Package Size: 8.5 * 5.7 * 17.3cm / 3.3 * 2.2 * 6.8in Package Weight: 172g / 6.1oz Package List: 1 * Godox DMR-16 Receiver 1 * Convert Adapter