Model Number: DLS-2815-A Brand Name: DELI Key Specifications/Special Features: Model: DLS-2815-AMax rated current: 600mAOutput power: 15WS.P.L: 108 ±5dB/1mRemark: one toneModel: DLS-2815-SMax rated current: 600mAOutput power: 15WS.P.L: 108 ±5dB/1mRemark: six tone
Model: DLS-2820-A
Max rated current: 1200mA
Output power: 20W
S.P.L: 110 ±5dB/1m
Remark: one tone

Model: DLS-2820-S
Max rated current: 1200mA
Output power: 20W
S.P.L: 110 ±5dB/1m
Remark: six tone

Model: DLB-2820
Max rated current: 1200mA
Output power: 20W
S.P.L: 110 ±5dB/1m
Remark: battery back up

Model: WH-28
Frequency range: 500 to 8K
Coil Impedance: 6
Rating power: 15W
Remark: horn speaker